The name of As4O10 would be tetraarsenic decoxide. It is not a real compound. The closest real compound is As2O5, which is arsenic pentoxide.
It is a polyatomic ion and its formula is AsO4 with a 3- charge
The formula for nickel(II) arsenate is Ni3(AsO4)2.
The chemical formula for lead(II) arsenate is Pb3(AsO4)2.
Ba+2 C2H3O2-1
The chemical formula for zinc arsenate is Zn3(AsO4)2.
It is a polyatomic ion and its formula is AsO4 with a 3- charge
The formula for nickel(II) arsenate is Ni3(AsO4)2.
The chemical formula for lead(II) arsenate is Pb3(AsO4)2.
The chemical symbol for cupric arsenate is Cu3(AsO4)2.
The chemical formula for cadmium arsenate is Cd3(AsO4)2. It is a compound formed by combining cadmium (Cd) and arsenate (AsO4) ions. Cadmium arsenate is a toxic substance that is used in the production of pigments and insecticides.
Ba+2 C2H3O2-1
The chemical formula for zinc arsenate is Zn3(AsO4)2.
The chemical formula of strontium arsenate is Sr3(AsO4)2.
Adamite is a zinc arsenate hydroxide mineral, Zn2AsO4OH
Oxygen pretty much always has an oxidation number of -2 (there are few exceptions.) A better question is "What is arsenic's oxidation number in this ion?" It would be +5.
The oxidation number of arsenic (As) in the AsO4^-3 ion is +5. This is because oxygen typically has an oxidation number of -2, and there are four oxygen atoms bonded to the arsenic atom, totaling -8. The overall charge of the ion is -3, so the arsenic must have an oxidation number of +5 to balance the charges.
The conjugate acid of HAsO4 2- is H2AsO4 -, formed by adding one proton (H+) to HAsO4 2-.