Calcium and Chlorine
Tin and Oxygen
Lithium and Iron
Gold and Silver
Sulfur and Oxygen
Nitrogen and Fluorine
Silver and Titanium
Barium and Chlorine
Sodium and Chlorine
Nitrogen and Oxygen
Magnesium and Nitrogen
Copper and Oxygen
Silver and Nitrogen
Bromine and Chlorine
Potassium and Sulfur
Zinc and Fluorine
Tin and Iron
Hydrogen and Oxygen
Iron and Zinc
Hydrogen and Nitrogen
Zinc anc Copper
