A 2.89 g sample of sulfur reacts with 5.72 g of copper to form a black compound.
What is the percentage composition of the compound?

Respuesta :

Answer:

50.5% Sulfur and 49.5%copper

Explanation:

2.89g/5.72g= 0.505*100=50.5%

100% - 50.5% = 49.5%