A molecule of consists of two atoms of hydrogen and one atom of oxygen. The chemical formula for water is .
Each hydrogen atom in a water molecule shares valence electron(s) with the oxygen atom.
The chemical formula for carbon dioxide is .
The chemical formula CO represents the compound .
Atoms or ions in compounds are held together by chemical .
Three types of chemical bonds are covalent, ionic, and bonds.

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?