A compound is formed by:, Physical mixing, Chemical combination, Heating elements, Cooling elements, Which of the following is a compound?, Air , Water , Oxygen , Iron , Compounds have:, Fixed composition, Random composition, Both A & B, NONE, Which is NOT a compound?, Sodium chloride, Carbon dioxide, Air, Water, The formula of water is:, NACL, CO2, O2, H2O, Which statement is TRUE?, Compounds are mixtures, Compounds can be separated easily, Compounds are always gases, Compounds have fixed composition, In a compound, elements lose their:, Original properties, Color Only, Mass, Shape.

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