text: Tin combines directly with chlorine forming tin ( IV ) chloride , while reacting tin with hydrochloric acid in water gives tin ( II ) chloride and hydrogen gas . Several other compounds of tin exist in the +2 and +4 oxidation states , such as tin ( II ) sulfide and tin ( IV ) sulfide ( Mosaic gold ) .
simplified: Tin burns in air to make tin ( IV ) oxide , which is white .