Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: #Cu_2S(s) + O_2(g) -> 2Cu(s) + SO_2(g)#. What mass of copper(I) sulfide is required in order to prepare 0.650 kg of copper metal?
You have given the stoichiometric equation that represents reduction of cuprous sulfide:
Sulfur is oxidized; copper and oxygen are reduced.
Given the equation, there is HALF AN EQUIVALENT of copper ore, i.e.
And this represents a mass of
I think the ore is the mineral