When NH3(aq) is added to Cu2 (aq), a precipitate initially forms. Its formula is: a. Cu(NH)3
b. Cu(NO3)2
c. Cu(OH)2
d. Cu(NH3)22
e. CuO

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Matches the chemical name of each oxide of phosphorus to its chemical formula

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together