Asked • 02/23/21

stoichometry question

Zinc sulfide solid reacts with oxygen gas to produce solid zinc oxide and sulfur dioxide gas. A mixture of the reactants originally contains 380.0 g of zinc sulfide and 176.0 g of oxygen gas. What is the limiting reactant? How much of the excess reactant (in grams) remains?

Write a balanced chemical equation for each of the following. (Do not forget to include the states of matter.)

Aqueous cobalt(III) nitrate reacts with aqueous ammonium sulfide to produce solid cobalt(III) sulfide and aqueous ammonium nitrate.

Gaseous dinitrogen pentoxide decomposes into gaseous nitrogen dioxide and oxygen gas.

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