The cuprous sulfide - Cu2S - is black.
copper (I) sulfide Common name: Chalcocite. It is an important copper mineral ore that is opaque with a dark grey to black luster.
What is chemical name of polypropelene.
A plant does not have a chemical name it has a botanical name = Capsicum Annuum.Only pure chemical compounds have chemical names.
Another name for chemical change is chemical reaction.
Cu2S
Copper matte is Cu2S.
Cu2S is copper(I) sulfide
The formula for cuprous sulfide is Cu2S. Copper (I) or cuprous has a +1 charge, whereas Sulfur has a charge of -2. Cu^(-1) + S^(-2) -> Cu2S (The subscript is 2)
Copper(I) sulfide is Cu2S Copper(II) sulfide is CuS
Copper sulfide. Depending on the valence of copper, you could have CuS or Cu2S
The formula for copper(II) sulfide is CuS the formula for copper(I) sulfide is Cu2S.
First you need to write a balanced chemical equation: 2Cu + S >> Cu2S Then you use dimensional analysis to solve and convert to kilograms: 0.90 mol Cu x 1 mol Cu2S/2 mol Cu x 159.166g Cu2S x 1kgCu2S/10^3g Cu2S= 7.2 x 10^-2 kg Cu2S Hope this helps!
Cu2S.
Cu2S
Ionic
Cu = +1