For CuO + H₂ → Cu + H₂O, how many moles of Cu form ideally from 1 mol CuO with other reactants in excess?

A) 3 mol

B) 0.5 mol

C) 1 mol

D) 2 mol

Answer: C

Explanation: The balanced equation gives a 1:1 mole ratio between CuO and Cu. Multiply 1 mol by 1/1 to get 1 mol of Cu.