Respuesta :

Add up the molar mass of Mercury Oxide, and then divide the molar mass of Oxygen by the molar mass of the compound.

So...

mm of Hg + mm of O= 200.59g + 16g= 217g

16g/217g = .0737... x 100 = 7.37%

Answer:

86%

Explanation:

This is the answer on Edmentum/plato. Hope this helps. Jesus loves YOU!