Answers

2016-03-13T15:32:04+05:30
1 mol of water = h2o
no oh h = 2 and  O = 1
ratio = 2/1=2:1
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2016-03-13T15:34:06+05:30
1 moleclule of water =H2O
no of hydrogen atom = 2  __________1
no 0f oxygen atom    =1____________2

frm equ 1 and 2
 = 1/2

1:2
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