Copper(l) sulfide can react with oxygen to produce copper metal by the reaction cu2s + o2 => 2cu + so2. if 5.00 g of cu2s is used, then what is the theoretical yield of cu? a. 10.0 g b. 1.99 g c. 1.00 g d. 5.00 g e. 3.99 g

N=m/M
n(Cu2S)=5/(63.55*2+32.06)=5/159.16=0.0314149
n(cu)=n(cu2s)*2=0.0628298
m(cu)=0.0628298*63.55=3.99
Answer 3.99 gram cu

Depending on where you live. If you live in the us, youre most likely in the temperate zone. If you live in Africa, you are in the tropical zone. Same as for South America. If you live in Antarctica you are in the polar zone. If you live in Europe or Asia you are temperate.