The sulfide ion is S2- while the somewhat unusual Mercury I ion is Hg22+
the 2+ and 2- ions will combine in a 1:1 ratio ro form an electrically neutral compound.
Potassium has a formal charge of +1, and sulfide has a formal charge of -2, so: K2S
Calcium and sulfur will react in a 1:1 ratio to form calcium sulfide with the formula CaS.
Sulfide is 1 sulfur and 1 oxygen. (S1O1) the 1's are small and below, just so you know.
The formula of sodium sulfide is Na2S, where the 2 should be a subscript. It means that in the ionic compound there are 2 moles of sodium ions for every 1 mole of sulfide ions.
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
Potassium has a formal charge of +1, and sulfide has a formal charge of -2, so: K2S
Calcium and sulfur will react in a 1:1 ratio to form calcium sulfide with the formula CaS.
Sulfide is 1 sulfur and 1 oxygen. (S1O1) the 1's are small and below, just so you know.
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)
The formula of sodium sulfide is Na2S, where the 2 should be a subscript. It means that in the ionic compound there are 2 moles of sodium ions for every 1 mole of sulfide ions.
The formula of sodium sulfide is Na2S, where the 2 should be a subscript. It means that in the ionic compound there are 2 moles of sodium ions for every 1 mole of sulfide ions.
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)
The formula of mercury(I) hydroxide is Hg2(OH)2.
The chemical formula is HgNO3.
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
HgI2
Cs+1 SO3-2