there are two steps in the extraction of copper metal from chalcocite, a copper ore. in the first step…

there are two steps in the extraction of copper metal from chalcocite, a copper ore. in the first step, copper(ⅰ) sulfide and oxygen react to form copper(ⅰ) oxide and sulfur dioxide: 2cu₂s(s)+3o₂(g)→2cu₂o(s)+2so₂(g). in the second step, copper(ⅰ) oxide and carbon react to form copper and carbon monoxide: cu₂o(s)+c(s)→2cu(s)+co(g). write the net chemical equation for the production of copper from copper(ⅰ) sulfide, oxygen and carbon. be sure your equation is balanced.

there are two steps in the extraction of copper metal from chalcocite, a copper ore. in the first step, copper(ⅰ) sulfide and oxygen react to form copper(ⅰ) oxide and sulfur dioxide: 2cu₂s(s)+3o₂(g)→2cu₂o(s)+2so₂(g). in the second step, copper(ⅰ) oxide and carbon react to form copper and carbon monoxide: cu₂o(s)+c(s)→2cu(s)+co(g). write the net chemical equation for the production of copper from copper(ⅰ) sulfide, oxygen and carbon. be sure your equation is balanced.

Answer

Explanation:

Step1: Multiply equations if needed

The first - step reaction is $2Cu_2S(s)+3O_2(g)\rightarrow2Cu_2O(s) + 2SO_2(g)$. The second - step reaction is $Cu_2O(s)+C(s)\rightarrow2Cu(s)+CO(g)$. To cancel out $Cu_2O$, we don't need to multiply the equations since the coefficient of $Cu_2O$ is 2 in the first reaction and 1 in the second reaction.

Step2: Add the two reactions

Add the two chemical equations together. The $2Cu_2O(s)$ on the product side of the first equation and the $Cu_2O(s)$ on the reactant side of the second equation will cancel out (after multiplying the second equation by 2 to balance the $Cu_2O$). Multiply the second equation by 2: $2Cu_2O(s)+2C(s)\rightarrow4Cu(s)+2CO(g)$. Now add the first equation $2Cu_2S(s)+3O_2(g)\rightarrow2Cu_2O(s) + 2SO_2(g)$ and the multiplied - second equation: $2Cu_2S(s)+3O_2(g)+2C(s)\rightarrow4Cu(s)+2SO_2(g)+2CO(g)$

Answer:

$2Cu_2S(s)+3O_2(g)+2C(s)\rightarrow4Cu(s)+2SO_2(g)+2CO(g)$