Question

How many grams of water will be produced from 100 grams of O2

Answer 1

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If we decompose 100 grams of pure water by passing electricity through it then 11 grams of hydrogen and 89 grams of oxygen obtained. This experiment shows that water always consists of the same two elements hydrogen and oxygen combine together in the same constant proportion of 11: 89 or 1:8 by mass.

Answer 2

maybe 1:8 or 11:89 is the answer