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21.The percentage of hydrogen in water and hydrogen peroxide is 11.1 and 5.9 respectively. This figure illustrate 1 law of multiple proportion. 2 law of conservation of mass 3 law of constant proportion. 4 law of combining volume

Answer» 21.The percentage of hydrogen in water and hydrogen peroxide is 11.1 and 5.9 respectively. This figure illustrate 1 law of multiple proportion. 2 law of conservation of mass 3 law of constant proportion. 4 law of combining volume


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