1 more of water requires 1 mole of hydrogen (H2) and 0.5 moles of oxygen (O2) . This requires 100/18 moles of hydrogen. As the molar mass of hydrogen is, 2 it requires 200/18= 100/9 g of hydrogen.
The believe that the best answer among the choices provided by the question is O with a pair of electrons above and below, a double-bond to the N with a pair of electrons above, a double-bond to the O with two pairs of electrons around it.
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Answer is in the file below
tinyurl.com/wpazsebu
We have a 3-colour vision which happens to be the primary colours: red, blue and yellow. So, we can see red, and that is why we see it.
To see other we just mix the different cells as if we where mixing paint to get a new colour.
Hope it was easy to understand,
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Blood is everything to your body without it you will die its the thing that keeps everything going