What is the % by mass (m/m) of copper in an alloy when 10 g of Cu is mixed with 250 g of Zn?

What is the % by mass (m/m) of copper in an alloy when 10 g of Cu is m

1.	What is the % by mass (m/m) of copper in an alloy when 10 g of Cu is mixed with 250 g of Zn?
Answer» is a chemical compound with the chemical FORMULA CH₄. It is a group-14 hydride and the SIMPLEST ALKANE, and is the main CONSTITUENT of natural GAS.