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We will have water (H2O)
So if you drink a glass of water, you drink a glass of H2O.
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Answer: Option (B) is the correct answer.
Explanation:
According to Le Chatelier's principle, any disturbance causes in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.
For example, 
When we increase the temperature then the reaction will shift in a direction where there will be decrease in temperature.
This, means that the reaction will shift in the backward direction.
Thus, we can conclude that if the reaction is at equilibrium and the temperature increases, the equilibrium will shift so that there is more nitrogen dioxide.
The sun is mostly Hydrogen with some helium. It also has traces of other elements like various metals.
Explanation:
In first one it should be 2Mg
and in second = 2Mgo
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