The whole number mass ratio of oxygen to hydrogen in water is 8: 1. how many grams of oxygen are there in 90 grams of water?

1. list three scientific reasons cockroaches may fly.

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds