Question

WO+H2O= W валентность 6

Answer 1

WO + 2 H2O = WO3 + 2 H2

скорее всего. Вообще оксида вольфрама (2) вроде и не бывает, а если и бывает он супер неустойчивый и его нигде не используют 

Answer 2

The equation you've provided, WO + H2O = W, seems to be missing some important information. Chemical equations typically need to be balanced and show the reactants and products involved in a chemical reaction.

However, it seems like you might be interested in the valency or oxidation state of tungsten (W) in this equation. Tungsten typically exhibits a valency of +6 in compounds. In the equation, "WO" likely refers to tungsten oxide, and in this compound, tungsten has a valency of +6.

If you have a specific question or need more information about a particular chemical reaction or concept, please provide additional details, and I'd be happy to assist you further.