Question

There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(1) sulfide and oxygen react to form copper(1) oxide and sulfur dioxide: 2 Cu, S(s)+30,(9) 2 Cu 0(s)+2 SO,(9) In the second step, copper(1) oxide and carbon react to form copper and carbon monoxide: Cu, O(s)+C(s)- 2 Cu(s)+CO(9) Write the net chemical equation for the production of copper from copper(I) sulfide, oxygen and carbon. Be sure your equation is balanced. D- EP X 5 ?

Answer 1

2 (U₂ S (s)+30₂ (9) 2 Cu 2 O (s) + 2s02eg6 Cu o is) + C is) 2 Cucs) & corg) - (2) According to Hess law, A chemical reaction can be a multi step reaction Net chemical reaction is determined by substraching for adding different steps. Multi Multiply the second chemical equation by z I and add it to the first chemical equation 2 Cu₂S (6) + 3 0₂ (g) 2 .0 (s) + 2 50₂ eg) 12 CuO (s) +2C (s) 4 Cucs) + 2 20 cal 2 Cu₂S is)+30₂19)+2((s) 4 Cucs) + 25 O₂(g). +2C0g)