Question

how many grams of water will produce when 5g of hydrogen reacts with 27g of oxygen​

Answer 1

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The molecular masses of hydrogen, oxygen and water are 2 g/mole, 32 g/mole and 18 g/mole respectively.

2H2+O2→2H2O

 2×2=4 g of hydrogen reacts with  1×32=32 g of oxygen to form  2×18=36 g of water.

Hence, 44=1 g of hydrogen reacts with  432=8 g of oxygen to form  436=9 g of water.

9 grams of water can be produced when 8 g of hydrogen reacts with 8 g oxygen.

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