Zinc oxide is found in ointments for the skin. What formula best describes this compound, which has Zn as a doubly charged cation?
A) ZnO
B) Zn2O
C) ZnO2
D) Zn2O2
E) Zn2O3
Correct Answer:
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Q85: What is the formula for calcium nitride?
A)CaN
B)Ca2N3
C)Ca2N
D)Ca3N2
E)CaN2
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