Copper sulfide. Depending on the valence of copper, you could have CuS or Cu2S
H2O is 2 hydrogens plus 1 oxygen and that makes the chemical formula for water.
There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)
Fe + S --> FeS
Copper carbonate + sulphuric acid = copper sulphate + water + carbon dioxide
the most common is ClS2, but you also get Cl2S8
The chemical formula of cupric oxide is CuO.
There are 2 sulfur atoms in the chemical reaction H2S plus SO2 plus H2.
Calcium and sulfur will react in a 1:1 ratio to form calcium sulfide with the formula CaS.
S +o2 => so2
Copper sulfide reacts with exces oxygen to produce copper and sulfur dioxide. This could be in the industrial production of copper from copper ores.
classical or chemical smog
The chemical formula for sodium selenide is Na2Se.
The chemical equation is C7H4O9
H2O is 2 hydrogens plus 1 oxygen and that makes the chemical formula for water.
This is not a chemical formula or equation.
Copper(II) carbonate + sulfuric acid ---> copper(II) sulfate + water + carbon dioxide. CuCO3 + H2SO4 ---> CuSO4 + H2O + CO2 I did a Google search and found this in a Wikipedia article titled "Copper(II) carbonate."
There are two different copper oxide formula's:2Cu + O2 -> 2CuO (black Copper(II) oxide)or4Cu + O2 -> 2Cu2O (red Copper(I) oxide)