Gas behavior is based on the following assumptions of the _______Answer: kinetic molecular the...
If bond order is greater than ____, then the substance can exist.
If bond order is greater than ____, then the substance can exist.Answer:&nbs...
p orbitals combine to form one ____ and one _____ molecular orbital and two _____ and two ____ molecular orbitals
p orbitals combine to form one ____ and one _____ molecular orbital and two _____ and two ____ molecular orbitalsAnswer: sigma, sigma, pi,...
s orbitals combine to form a ____ and a ___ molecular orbital.
s orbitals combine to form a ____ and a ___ molecular orbital.Answer: sigma, sig...
_____ tells if a bond between two atoms is favorable. Anything greater than 0 is favorable.
_____ tells if a bond between two atoms is favorable. Anything greater than 0 is favorable.Answer: bond or...
Atomic orbitals are described by _____ functions: combine constructively and destructively.
Atomic orbitals are described by _____ functions: combine constructively and destructively.Answer: w...
______ are generated by the combination of atomic orbitals from different atoms.
______ are generated by the combination of atomic orbitals from different atoms.Answer: molecular orbit...
A ________ is an orbital for a molecule rather than an atomic orbital.
A ________ is an orbital for a molecule rather than an atomic orbital.Answer: molecular orbi...
_____ is repelled and has all paired electrons.
_____ is repelled and has all paired electrons.Answer: diamagne...
______ is attracted to magnetic field and has unpaired electrons.
______ is attracted to magnetic field and has unpaired electrons.Answer: paramagne...
____-bonds restrict rotation of parts of the molecule, because the unhybridized p-orbitals must remain parallel.
____-bonds restrict rotation of parts of the molecule, because the unhybridized p-orbitals must remain parallel.Answer: ...
A ____-bond is generated from overlap of parallel unhybridized p orbitals.
A ____-bond is generated from overlap of parallel unhybridized p orbitals.Answer: ...
A _____-bond is generated from direct overlap of hybridized or unhybridized orbitals.
A _____-bond is generated from direct overlap of hybridized or unhybridized orbitals.Answer: si...
In a double bond, the second pair of electrons is shared between parallel (unhybridized) p orbitals. this type of bond is called a __ bond.
In a double bond, the second pair of electrons is shared between parallel (unhybridized) p orbitals. this type of bond is called a __ bond.Answer:&nb...
In a double bond, one pair of electrons is shared between axially overlapping orbitals (hybridized or unhybridized). this type of bond is called a _____ bond.
In a double bond, one pair of electrons is shared between axially overlapping orbitals (hybridized or unhybridized). this type of bond is called a _____...
The number of hybrid orbitals required by an atom is equivalent to the number of ________
The number of hybrid orbitals required by an atom is equivalent to the number of ________Answer: electron doma...
_____ of the atomic orbitals - the valence atomic orbitals combine to generate equivalent hybrid orbitals.
_____ of the atomic orbitals - the valence atomic orbitals combine to generate equivalent hybrid orbitals.Answer: hybridizat...
A ______ bond is generated by overlap of two orbitals, one from each bonding atom.
A ______ bond is generated by overlap of two orbitals, one from each bonding atom.Answer: coval...
If any of the pairs is non-bonding or bonded to a different atom, then it will likely be _____
If any of the pairs is non-bonding or bonded to a different atom, then it will likely be _____Answer: po...
If all of the electron pairs around the central atom are bonding to the same atoms, then it is likely _______
If all of the electron pairs around the central atom are bonding to the same atoms, then it is likely _______Answer: non po...
The ______ bonds must be asymmetrically arranged around a central atom - the dipole moments of each polar bond cannot cancel each other out.
The ______ bonds must be asymmetrically arranged around a central atom - the dipole moments of each polar bond cannot cancel each other out.Answer:&n...
A central atom has a non-bonding pair, a single bond, and a double bond. What is the approximate bond angle?
A central atom has a non-bonding pair, a single bond, and a double bond. What is the approximate bond angle?Answer: ...
A central atom has a non-bonding pair, a single bond, and a double bond. What is the molecular geometry?
A central atom has a non-bonding pair, a single bond, and a double bond. What is the molecular geometry?Answer: b...
A central atom has a non-bonding pair, a single bond, and a double bond. What is the electron domain geometry?
A central atom has a non-bonding pair, a single bond, and a double bond. What is the electron domain geometry?Answer: trigonal pla...
The _______ the bond order, the more space the domain requires due to greater electron - electron repulsion.
The _______ the bond order, the more space the domain requires due to greater electron - electron repulsion.Answer: grea...
Bond angles are ______ than ideal angles when non-bonding pairs or double and triple bonds are present.
Bond angles are ______ than ideal angles when non-bonding pairs or double and triple bonds are present.Answer: smal...
________ is the energy required to break a bond.
________ is the energy required to break a bond.Answer: bond dissociation ene...
For exothermic, new bonds are _______ than old bonds.
For exothermic, new bonds are _______ than old bonds.Answer: stron...
For endothermic, new bonds are ______ than old bonds.
For endothermic, new bonds are ______ than old bonds.Answer: wea...
When bonds are made, energy is ______
When bonds are made, energy is ______Answer: relea...
Energy is _______ when new stronger bonds are made.
Energy is _______ when new stronger bonds are made.Answer: relea...
________ is the number of bonds between two atoms.
________ is the number of bonds between two atoms.Answer: bond or...
Which 4 atoms can make covalent bonds and not achieve a full octet?
Which 4 atoms can make covalent bonds and not achieve a full octet?Answer: B, Be, H,...
Atoms in ________ and beyond can have more than 8 electrons in their valence shell.
Atoms in ________ and beyond can have more than 8 electrons in their valence shell.Answer: period...
________ structures stabilize the system, because it spreads the electron density out more, leading to less electron-electron repulsion.
________ structures stabilize the system, because it spreads the electron density out more, leading to less electron-electron repulsion.Answer: ...
Standard temperature and pressure (STP), in the context of gases, refers to ________.
Standard temperature and pressure (STP), in the context of gases, refers to ________.Answer: 273.15 K and 1 ...
The π bond in ethylene, H2C=CH2 (double bond between the Carbons), results from the overlap of ________.
The π bond in ethylene, H2C=CH2 (double bond between the Carbons), results from the overlap of ________.Answer: p atomic orbit...
The basis of the VSEPR model of molecular bonding is ________.
The basis of the VSEPR model of molecular bonding is ________.A. hybrid orbitals will form as necessary to, as closely as possible, achieve spherical...
A real gas will behave most like an ideal gas under conditions of ________.
A real gas will behave most like an ideal gas under conditions of ________.Answer: high temperature, low press...
The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases because ________.
The kinetic-molecular theory predicts that pressure rises as the temperature of a gas increases because ________.A. the gas molecules collide less frequently...
An ideal gas differs from a real gas in that the molecules of an ideal gas ________.
An ideal gas differs from a real gas in that the molecules of an ideal gas ________.A.have an average molecular massB.have appreciable molecular volumeC.have...
What exactly does chymotrypsin do?
What exactly does chymotrypsin do?Answer: It cleaves the peptide bond at the C-terminal side of phenylalanine via two tetrahedral oxyanion inter...
What type of enzyme is chymotrypsin?
What type of enzyme is chymotrypsin?Answer: Serine prote...
What does the active site of chymotrypsin contain and what position is it at?
What does the active site of chymotrypsin contain and what position is it at?Answer: Serine at position ...
What are the ways enzymes are regulated?
What are the ways enzymes are regulated?Answer: Genetic control, covalent modification, allosteric regulation, and compartmentat...
If you are developing a medicine to inhibit an enzyme, what should you make?
If you are developing a medicine to inhibit an enzyme, what should you make?Answer: Make a medicine that resembles the substr...
What is a zymogen and what is the zymogen discussed in class?
What is a zymogen and what is the zymogen discussed in class?Answer: The inactive precursor form of an enzyme, for chymotrypsin its chymotrpsino...
What is specific activity in enzyme kinetics?
What is specific activity in enzyme kinetics?Answer: The number of international units per milligram of prot...
What is an international unit (IU) in enzyme kinetics?
What is an international unit (IU) in enzyme kinetics?Answer: One IU is the amount of enzyme that produces 1 micromol of product per min...
What is the slope in the Lineweaver-Burk plot?
What is the slope in the Lineweaver-Burk plot?Answer: Km/V...
How do you overcome competitive inhibition?
How do you overcome competitive inhibition?Answer: By simply adding more substr...
What does the turnover number mean in enzyme kinetics?
What does the turnover number mean in enzyme kinetics?Answer: How efficient the enzyme is/how much product it can make from so much substr...
What happens during uncompetitive inhibition?
What happens during uncompetitive inhibition?Answer: The inhibitor binds the enzyme substrate comp...
What happens during noncompetitive inhibition?
What happens during noncompetitive inhibition?Answer: The inhibitor binds to a site other than the active site called the allosteric site (hence...
What happens during competitive inhibition?
What happens during competitive inhibition?Answer: The substrate and inhibitor binding are mutually exclusive to each ot...
What are the non-covalent modes of inhibition?
What are the non-covalent modes of inhibition?Answer: Competitive, noncompetitive, uncompetit...
Why is the Induced Fit Model deemed to be more correct than the Lock and Key Model?
Why is the Induced Fit Model deemed to be more correct than the Lock and Key Model?Answer: Because of the enzyme's active site perfectly fit and...
What are the two models of substrates binding to enzymes, and which is deemed to be more correct?
What are the two models of substrates binding to enzymes, and which is deemed to be more correct?Answer: Lock and Key Model and Induced Fit Model,...
What are the definitions of apoenzymes and holoenzymes and what is the difference between them?
What are the definitions of apoenzymes and holoenzymes and what is the difference between them?Answer: An apoenzyme is a conjugated enzyme without...
What are the definitions of apoproteins and holoproteins and what is the difference between them?
What are the definitions of apoproteins and holoproteins and what is the difference between them?Answer: An apoprotein is a conjugated enzyme without...
True or false: All cofactors are coenzymes.
True or false: All cofactors are coenzymes.Answer: False (coenzymes are organic, but some cofactors are inorgan...
Pertaining to enzymes, what is a cofactor?
Pertaining to enzymes, what is a cofactor?Answer: A non-protein prosthetic group of a conjugated enz...
What does the fourth number indicate in the Enzyme Commission number for an enzyme?
What does the fourth number indicate in the Enzyme Commission number for an enzyme?Answer: Indicates what molecule is accepting what is being tr...
What does the third number mean in the Enzyme Commission number of an enzyme? (hint: it is directly related to the second number)
What does the third number mean in the Enzyme Commission number of an enzyme? (hint: it is directly related to the second number)Answer: Indicates...
What does the second number mean in the Enzyme Commission number of an enzyme?
What does the second number mean in the Enzyme Commission number of an enzyme?Answer: Subclass of the enzyme (i.e. phosphotransfera...
In the four-letter coding (Enzyme Commission number) of enzymes, what does the first digit signify?
In the four-letter coding (Enzyme Commission number) of enzymes, what does the first digit signify?Answer: Class name of the enzyme (1...
What are the six classes of enzymes, and what are their numbers according to the enzyme commission numbering system?
What are the six classes of enzymes, and what are their numbers according to the enzyme commission numbering system?1. Oxidoreductases2. Transferases3....
How exactly do active sites catalyze reactions when a substrate is bound to it?
How exactly do active sites catalyze reactions when a substrate is bound to it?Answer: The shape and charge distribution of an enzyme's active site...
How does X-Ray Crystallography separate proteins?
How does X-Ray Crystallography separate proteins?Answer: Highly ordered crystalline specimens are exposed to an X-ray beam. As the rays hit the crystal,...
How does mass spectrometry (electrospray ionization) separate proteins?
How does mass spectrometry (electrospray ionization) separate proteins?Answer: A protein solution positively charged by an electric current is vaporized...
How does electrophoresis separate proteins?
How does electrophoresis separate proteins?Answer: The protein samples are poured in wells in an apparatus that contains negatively charged SDS-Pac...
How does gel-filtration separate proteins?
How does gel-filtration separate proteins?Answer: Protein particles in an aqueous solution flow through a hollow tube filled with gel. Molecules...
How does ion-exchange chromatography separate proteins?
How does ion-exchange chromatography separate proteins?Answer: It separates proteins on the basis of their charge when anions or cations bind negatively...
Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 =
Determine the answer to the following equation with correct number of significant figures: 106 ÷ 9.02 × 1.9 = A) 22.32816B) 22.328C) 22.3D) 22E)...
Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 =
Determine the answer for the equation below with correct number of significant figures: 1.2 × 1.79 = A) 2.148B) 2.15C) 2.1D) 2.2E) none of the a...
Determine the answer for the equation below with correct number of significant figures: 3.215 × 13.2 ÷ 0.218 =
Determine the answer for the equation below with correct number of significant figures: 3.215 × 13.2 ÷ 0.218 = A) 194.669B) 195C) 194.7D) 194.67E)...
How many significant digits should be reported in the answer to the following calculation? (4.3 - 3.7) × 12.3 =
How many significant digits should be reported in the answer to the following calculation? (4.3 - 3.7) × 12.3 =A) 1B) 2C) 3D) 4E) none of the aboveAn...
A combination reaction may also be a displacement reaction. (T/F)
A combination reaction may also be a displacement reaction.(T/F)Answer:&nbs...
The combustion of an element is always a combination reaction. (T/F)
The combustion of an element is always a combination reaction.(T/F)Answer:&nbs...
All combustion reactions are classified as combination reactions. (T/F)
All combustion reactions are classified as combination reactions.(T/F)Answer:&nbs...
In a redox reaction, the oxidizing agent undergoes loss of electrons. (T/F)
In a redox reaction, the oxidizing agent undergoes loss of electrons.(T/F)Answer:&nbs...
In a redox reaction, the reducing agent undergoes loss of electrons. (T/F)
In a redox reaction, the reducing agent undergoes loss of electrons.(T/F)Answer:&nbs...
A particular reaction may be both a precipitation and an acid-base (neutralization) reaction. (T/F)
A particular reaction may be both a precipitation and an acid-base (neutralization) reaction.(T/F)Answer:&nbs...
In an acid-base (neutralization) reaction the equivalence point is the point where the indicator changes color. (T/F)
In an acid-base (neutralization) reaction the equivalence point is the point where the indicator changes color.(T/F)Answer:&nbs...
In an acid-base (neutralization) reaction the indicator will change color at the end point. (T/F)
In an acid-base (neutralization) reaction the indicator will change color at the end point.(T/F)Answer:&nbs...
Some covalent compounds dissolve in water to produce conducting solutions. (T/F)
Some covalent compounds dissolve in water to produce conducting solutions.(T/F)Answer:&nbs...
Predict the products by completing a balanced equation for the following decomposition reaction. CaCl₂(l) --electricity--> ?
Predict the products by completing a balanced equation for the following decomposition reaction.CaCl₂(l) --electricity--> ?A) CaCl₂(l) --electricity-->...
Predict the product(s) for the following reaction. H₂SO₄(aq) + KOH(aq) →
Predict the product(s) for the following reaction.H₂SO₄(aq) + KOH(aq) →A) K₂SO4(aq) + H₂O(l)B) K₂S(aq) + H₂O(l)C) K(s) + H₂(g) + SO₃(g)D) KSO4(aq) + H2O(l)E)...
Predict the product(s) for the following reaction. BaO(s) + CO2(g) →
Predict the product(s) for the following reaction.BaO(s) + CO2(g) →A) Ba(s) + CO₃(g)B) BaCO₃(s)C) BaO(s) + C(s)D) Ba(s) + CO₃E) No reaction occurs.Answer:...
Predict the product(s) for the following reaction. Cl₂O₇(g) + H₂O(l) →
Predict the product(s) for the following reaction.Cl₂O₇(g) + H₂O(l) →A) HClO₄(aq)B) H₂ClO₄(aq)C) H(ClO₄)₂ (aq)D) HCl(aq) + O₂(g)E) HClO₃(aq)Answer:...
Select the classification for the following reaction. 2I⁻(aq) + Cl₂(aq) → I₂(aq) + 2Cl⁻(aq)
Select the classification for the following reaction.2I⁻(aq) + Cl₂(aq) → I₂(aq) + 2Cl⁻(aq)A) combinationB) displacementC) decompositionD) precipitationE)...
Select the classification for the following reaction. 2Ag⁺(aq) + Zn(s) → 2Ag(s) + Zn²⁺(aq)
Select the classification for the following reaction.2Ag⁺(aq) + Zn(s) → 2Ag(s) + Zn²⁺(aq)A) displacementB) decompositionC) combinationD) precipitationE)...
Select the classification for the following reaction. H₂CO₃(aq) → H₂O(l) + CO₂(g)
Select the classification for the following reaction.H₂CO₃(aq) → H₂O(l) + CO₂(g)A) combinationB) decompositionC) displacementD) acid-baseE) None of these...
Select the classification for the following reaction. CaCl₂·H₂O(s) --heat--> CaCl₂(s) + H₂O(g)
Select the classification for the following reaction.CaCl₂·H₂O(s) --heat--> CaCl₂(s) + H₂O(g)A) combinationB) decompositionC) displacementD) acid-baseE)...
Select the classification for the following reaction. 2H₂O₂(aq) → 2H₂O(l) + O₂(g)
Select the classification for the following reaction.2H₂O₂(aq) → 2H₂O(l) + O₂(g)A) combinationB) decompositionC) displacementD) acid-baseE) None of these...
Select the classification for the following reaction. 2NaCl(l) --electricity--> 2Na(l) + Cl₂(g)
Select the classification for the following reaction.2NaCl(l) --electricity--> 2Na(l) + Cl₂(g)A) acid-baseB) precipitationC) combinationD) displacementE)...
Select the classification for the following reaction. Na₂O(s) + H₂O(l) → 2NaOH(aq)
Select the classification for the following reaction.Na₂O(s) + H₂O(l) → 2NaOH(aq)A) combinationB) decompositionC) displacementD) acid-baseE) precipitationAnswer:...
The compound P₄O₁₀ is used in refining sugar. Select the classification for the reaction in which it is synthesized. P₄(s) + 5O₂(g) → P₄O₁₀(s)
The compound P₄O₁₀ is used in refining sugar. Select the classification for the reaction in which it is synthesized.P₄(s) + 5O₂(g) → P₄O₁₀(s)A) combinationB)...
Select the classification for the following reaction. H₂(g) + Cl₂(g) → 2HCl(g)
Select the classification for the following reaction.H₂(g) + Cl₂(g) → 2HCl(g)A) combinationB) decompositionC) displacementD) acid-baseE) None of these...
Select the classification for the following reaction. BaCl₂(aq) + K₂SO₄(aq) → BaSO₄(s) + 2KCl(aq)
Select the classification for the following reaction.BaCl₂(aq) + K₂SO₄(aq) → BaSO₄(s) + 2KCl(aq)A) precipitationB) acid-baseC) redoxD) decompositionE)...
Select the classification for the following reaction. Fe(s) + 2Fe³⁺(aq) → 3Fe²⁺(aq)
Select the classification for the following reaction.Fe(s) + 2Fe³⁺(aq) → 3Fe²⁺(aq)A) precipitationB) acid-baseC) redoxD) decompositionE) None of these...
Select the classification for the following reaction. KOH(aq) + HCl(aq) → KCl(aq) + H₂O(l)
Select the classification for the following reaction.KOH(aq) + HCl(aq) → KCl(aq) + H₂O(l)A) precipitationB) acid-baseC) redoxD) combinationE) None of...
Select the classification for the following reaction. NH₃(aq) + HNO₃(aq) → NH₄NO₃(aq)
Select the classification for the following reaction.NH₃(aq) + HNO₃(aq) → NH₄NO₃(aq)A) precipitationB) acid-baseC) redoxD) decompositionE) None of these...
Select the classification for the following reaction. Fe²⁺(aq) + 2OH⁻(aq) → Fe(OH)₂(s)
Select the classification for the following reaction.Fe²⁺(aq) + 2OH⁻(aq) → Fe(OH)₂(s)A) precipitationB) acid-baseC) redoxD) decompositionE) None of these...
Select the classification for the following reaction. 2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g)
Select the classification for the following reaction.2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g)A) precipitationB) acid-baseC) redoxD) combinationE) None of...
Identify all the spectator ions in the following reaction. 2KMnO₄(aq) + 10FeSO₄(aq) + 8H₂SO₄(aq) → K₂SO₄(aq) + 2MnSO₄(aq) + 5Fe₂(SO₄)₃(aq) + 8H₂O(l)
Identify all the spectator ions in the following reaction.2KMnO₄(aq) + 10FeSO₄(aq) + 8H₂SO₄(aq) → K₂SO₄(aq) + 2MnSO₄(aq) + 5Fe₂(SO₄)₃(aq) + 8H₂O(l)A)...
Which one of the following is not a redox reaction?
Which one of the following is not a redox reaction?A) 2Na(s) + 2H₂O(l) → 2NaOH(aq) + H₂(g)B) H₂(g) + Cl₂(g) → 2HCl(g)C) 2H₂O₂(aq) → 2H₂O(l) + O₂(g)D)...
Which one of the following is a redox reaction?
Which one of the following is a redox reaction?A) 2Na(g) + Cl₂(g) → 2NaCl(s)B) Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s)C) K₂Cr₂O₇(aq) + 2KOH(aq) → 2K₂CrO₄(aq)...
Which one of the following is not a redox reaction?
Which one of the following is not a redox reaction?A) 2H₂O₂(aq) → 2H₂O(l) + O₂(g)B) N₂(g) + 3H₂(g) → 2NH₃(g)C) BaCl₂(aq) + K₂CrO₄(aq) → BaCrO₄(aq) + 2KCl(aq)D)...
Which one of the following is not a redox reaction?
Which one of the following is not a redox reaction?A) 2H₂(g) + O₂(g) → 2H₂O(l)B) Zn(s) + H₂SO₄(aq) → ZnSO₄(aq) + H₂(g)C) H₂O(l) + NH₃(g) → NH4⁺(aq) +...
Sodium thiosulfate, Na2S2O3, is used as a "fixer" in black and white photography. Identify the reducing agent in the reaction of thiosulfate with iodine. 2S₂O₃²⁻(aq) _ I₂(aq) → S₄O₆²⁻(aq) + 2I⁻(aq)
Sodium thiosulfate, Na2S2O3, is used as a "fixer" in black and white photography.Identify the reducing agent in the reaction of thiosulfate with iodine.2S₂O₃²⁻(aq)...
Identify the oxidizing agent in the following redox reaction. Hg²⁺(aq) + Cu(s) → Cu²⁺(aq) + Hg(l)
Identify the oxidizing agent in the following redox reaction.Hg²⁺(aq) + Cu(s) → Cu²⁺(aq) + Hg(l)A) Hg²⁺(aq)B) Cu(s)C) Cu²⁺(aq)D) Hg(l)E) Hg²⁺(aq) and...
The oxidation numbers of P, S and Cl in H₂PO₂⁻, H₂S and KClO₄ are, respectively
The oxidation numbers of P, S and Cl in H₂PO₂⁻, H₂S and KClO₄ are, respectivelyA) -1, -1, +3B) +1, -2, +7C) +1, +2, +7D) -1, -2, +7E) -1, -2, +3Answer:...
Calculate the oxidation number of iodine in I₂.
Calculate the oxidation number of iodine in I₂.A) -1B) 0C) +1D) +7E) None of these is the correct oxidation number.Answer:...
Sodium tripolyphosphate is used in detergents to make them effective in hard water. Calculate the oxidation number of phosphorus in Na₅P₃O₁₀.
Sodium tripolyphosphate is used in detergents to make them effective in hard water. Calculate the oxidation number of phosphorus in Na₅P₃O₁₀.A) +3B) +5C)...
Calculate the oxidation number of sulfur in sodium metabisulfite, Na₂S₂O₅.
Calculate the oxidation number of sulfur in sodium metabisulfite, Na₂S₂O₅.A) -2B) +2C) +4D) +5E) None of these is the correct oxidation number.Answer:...
Calculate the oxidation number of the chlorine in perchloric acid, HClO₄, a strong oxidizing agent.
Calculate the oxidation number of the chlorine in perchloric acid, HClO₄, a strong oxidizing agent.A) -1B) +4C) +5D) +7E) None of these is the correct...
A 0.00100 mol sample of Ca(OH)₂ requires 25.00 mL of aqueous HCl for neutralization according to the reaction below. What is the concentration of the HCl? Equation: Ca(OH)₂(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(l)
A 0.00100 mol sample of Ca(OH)₂ requires 25.00 mL of aqueous HCl for neutralization according to the reaction below. What is the concentration of the...
Vinegar is a solution of acetic acid, CH₃COOH, dissolved in water. A 5.54-g sample of vinegar was neutralized by 30.10 mL of 0.100 M NaOH. What is the percent by weight of acetic acid in the vinegar?
Vinegar is a solution of acetic acid, CH₃COOH, dissolved in water. A 5.54-g sample of vinegar was neutralized by 30.10 mL of 0.100 M NaOH. What is the...
Automobile batteries use 3.0 M H₂SO₄ as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H₂SO₄(aq) + 2NaOH(aq) → 2H₂O(l) + Na₂SO₄(aq)
Automobile batteries use 3.0 M H₂SO₄ as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid?H₂SO₄(aq) + 2NaOH(aq)...
A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid?
A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize...
Select the net ionic equation for the reaction between lithium hydroxide and hydrobromic acid. LiOH(aq) + HBr(aq) → H₂O(l) + LiBr(aq)
Select the net ionic equation for the reaction between lithium hydroxide and hydrobromic acid.LiOH(aq) + HBr(aq) → H₂O(l) + LiBr(aq)A) LiOH(aq) → Li⁺(aq)...
Select the correct set of products for the following reaction. Ba(OH)₂(aq) + HNO₃(aq) →
Select the correct set of products for the following reaction.Ba(OH)₂(aq) + HNO₃(aq) →A) BaN₂(s) + H₂O(l)B) Ba(NO₃)₂(aq) + H₂O(l)C) Ba(s) + H₂(g) + NO₂(g)D)...
Which one of the following substances is a strong acid?
Which one of the following substances is a strong acid?A) HNO₃B) H2CO₃C) NH₃D) CH₃COOHE) H₃PO₄Answer:...
Which of the following is a weak base?
Which of the following is a weak base?A) NH₃B) Ca(OH)₂C) Ba(OH)₂D) NaOHE) CH₃COOHAnswer:...
Which of the following is a strong base?
Which of the following is a strong base?A) NH₃B) Ca(OH)₂C) Al(OH)₃D) B(OH)₃E) CH₃OHAnswer:...
Which of the following is a strong acid?
Which of the following is a strong acid?A) H₃PO₄B) HNO₃C) HFD) CH₃COOHE) H₂OAnswer:...
Which of the following is a weak acid?
Which of the following is a weak acid?A) H₂SO₄B) HNO₃C) HFD) HBrE) HClAnswer:...
Select the net ionic equation for the reaction between sodium chloride and mercury(I) nitrate. 2NaCl(aq) + Hg₂(NO₃)₂(aq) → NaNO₃(aq) + Hg₂Cl₂(s)
Select the net ionic equation for the reaction between sodium chloride and mercury(I) nitrate.2NaCl(aq) + Hg₂(NO₃)₂(aq) → NaNO₃(aq) + Hg₂Cl₂(s)A) Na⁺(aq)...
Select the correct name and chemical formula for the precipitate that forms when the following reactants are mixed. CoSO4(aq) + (NH4)3PO4(aq) →
Select the correct name and chemical formula for the precipitate that forms when the following reactants are mixed.CoSO4(aq) + (NH4)3PO4(aq) →A) cobalt(II)...
Select the correct name and chemical formula for the precipitate that forms when the following reactants are mixed. CuCl₂(aq) + Na₂CO₃(aq) →
Select the correct name and chemical formula for the precipitate that forms when the following reactants are mixed.CuCl₂(aq) + Na₂CO₃(aq) →A) copper(I)...
Select the precipitate that forms when aqueous lead(II) nitrate reacts with aqueous sodium sulfate.
Select the precipitate that forms when aqueous lead(II) nitrate reacts with aqueous sodium sulfate.A) NaNO₃B) Na₂NO₃C) PbSO₄D) Pb₂SO₄E) PbSAnswer:...
Select the precipitate that forms when aqueous ammonium sulfide reacts with aqueous copper(II) nitrate.
Select the precipitate that forms when aqueous ammonium sulfide reacts with aqueous copper(II) nitrate.A) CuSB) Cu₂SC) NH₃NO₃D) NH₄(NO₃)₂E) CuSO₄Answer:...
Select the precipitate that forms when the following reactants are mixed. Mg(CH₃COO)₂(aq) + LiOH(aq) →
Select the precipitate that forms when the following reactants are mixed.Mg(CH₃COO)₂(aq) + LiOH(aq) →A) LiCH₃COOB) Li(CH₃COO)2C) MgOHD) Mg(OH)₂E) CH₃OHAnswer:...
Select the precipitate that forms when the following reactants are mixed. Na₂CO₃(aq) + BaCl₂(aq) →
Select the precipitate that forms when the following reactants are mixed.Na₂CO₃(aq) + BaCl₂(aq) →A) Ba₂CO₃B) BaCO₃C) NaClD) NaCl₂E) BaOAnswer:...
In the following reaction, what ions, if any, are spectator ions? Pb(NO₃)₂(aq) + 2NaCl(aq) → PbCl₂(s) + 2NaNO₃(aq)
In the following reaction, what ions, if any, are spectator ions?Pb(NO₃)₂(aq) + 2NaCl(aq) → PbCl₂(s) + 2NaNO₃(aq)A) Pb²⁺(aq), Cl⁻(aq)B) Na⁺(aq), NO₃⁻(aq)C)...
Which one of the following substances is the best electrolyte?
Which one of the following substances is the best electrolyte?A) COB) CH₃ClC) CH₄D) C₂H₅OHE) HClAnswer:...
Which one of the following substances, when dissolved in water at equal molar concentrations, will give the solution with the lowest electrical conductivity?
Which one of the following substances, when dissolved in water at equal molar concentrations, will give the solution with the lowest electrical conductivity?A)...
1.0 M aqueous solutions of the following substances are prepared. Which one would you expect to have the lowest electrical conductivity?
1.0 M aqueous solutions of the following substances are prepared. Which one would you expect to have the lowest electrical conductivity?A) NaOHB) CH₃CH₂OH...
Which of the following solutions will be the best conductor of electrical current?
Which of the following solutions will be the best conductor of electrical current?A) methyl alcohol, CH₃OH(aq)B) glucose, C₆H₁₂O₆(aq)C) potassium chloride,...
Which of the following solutions will be the poorest conductor of electrical current?
Which of the following solutions will be the poorest conductor of electrical current?A) sucrose, C₁₂H₂₂O₁₁(aq)B) sodium chloride, NaCl(aq)C) potassium...
Which of the following will be least soluble in water?
Which of the following will be least soluble in water?A) potassium sulfate, K₂SO₄B) ammonium nitrate, NH₄NO₃C) chloromethane, CH₃ClD) calcium chloride,...
Which of the following is most soluble in water?
Which of the following is most soluble in water?A) benzene, C₆H₆B) potassium nitrate, KNO₃C) carbon tetrachloride, CCl₄D) hexane, C₆H₁₄E) ethane, C₂H₄Answer:...
How many sodium ions are present in 325 mL of 0.850 M Na₂SO₄?
How many sodium ions are present in 325 mL of 0.850 M Na₂SO₄?A) 1.66 x 10²³ Na ionsB) 3.33 x 10²³ Na ionsC) 4.99 x 10²³ Na ionsD) 6.20 x 10²³ Na ionsE)...
How many moles of H+ (aq) ions are present in 1.25 L of 0.75 M nitric acid?
How many moles of H+ (aq) ions are present in 1.25 L of 0.75 M nitric acid?A) 0.60 molB) 0.75 molC) 0.94 molD) 1.7 molE) 1.9 molAnswer:...
How many moles of H+(aq) ions are present in 750 mL of 0.65 M hydrochloric acid?
How many moles of H+(aq) ions are present in 750 mL of 0.65 M hydrochloric acid?A) 1.2 molB) 0.98 molC) 0.87 molD) 0.65 molE) 0.49 molAnswer:...
How many moles of ions are released when 1.6 mol of ammonium phosphate, (NH₄)₃PO₄, is dissolved in water?
How many moles of ions are released when 1.6 mol of ammonium phosphate, (NH₄)₃PO₄, is dissolved in water?A) 0.40 molB) 1.6 molC) 3.2 molD) 4.8 molE) 6.4...
How many moles of ions are released when 0.27 mol of cobalt(II) chloride, CoCl₂, is dissolved in water?
How many moles of ions are released when 0.27 mol of cobalt(II) chloride, CoCl₂, is dissolved in water?A) 0.81 molB) 0.54 molC) 0.27 molD) 0.18 molE)...
Potassium carbonate, K₂CO₃, sodium iodide, NaI, magnesium chloride, MgCl₂, methanol, CH₃OH, and ammonium chloride, NH⁴Cl, are soluble in water. Which produces the largest number of dissolved particles per mole of dissolved solute?
Potassium carbonate, K₂CO₃, sodium iodide, NaI, magnesium chloride, MgCl₂, methanol, CH₃OH, and ammonium chloride, NH⁴Cl, are soluble in water. Which...
Potassium chloride, KCl, sodium sulfate, Na₂SO₄, glucose, C₆H₁₂O₆, carbon dioxide, CO₂ and ammonium phosphate, (NH₄)₃PO₄, are soluble in water. Which one produces largest number of dissolved particles per mole of dissolved solute?
Potassium chloride, KCl, sodium sulfate, Na₂SO₄, glucose, C₆H₁₂O₆, carbon dioxide, CO₂ and ammonium phosphate, (NH₄)₃PO₄, are soluble in water. Which...
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