
2 moles of H₂ : 1 mole of O₂ : 2 moles of H₂O
number of moles of H₂ : number of moles of H₂O = 1 : 1

There are 5 moles of hydrogen so there must be 5 moles of water too.

The mass of H₂O is 90 g.
The answer is A
explanation:
We know that the atomic weight of carbon is 12 grams and that of oxygen is 16 grams. Hence we have calculated the mass 5 of carbon in carbon dioxide to be 27.27%.
Answer:
Anything that can be done to increase the frequency of those collisions and/or to give those collisions more energy will increase the rate of dissolving.
Explanation:
depended on the temperature