Which of the following is NOT the correct chemical formula for the compound named?
a. nickel(II) oxide NiO
b. calcium sulfide CaSO4
c. ammonium chromate (NH4)2CrO4
Answer: B
Which of the following is NOT the correct chemical formula for the compound named?
a. nickel(II) oxide NiO
b. calcium sulfide CaSO4
c. ammonium chromate (NH4)2CrO4
Answer: B