Ethyl bromide reacts with sodium methoxide to form ?

The reactants should be ethyl bromide and sodium methoxide.

The products of the reactions are diethylether and sodium bromide.  

Explanation:

When ethyl bromide, it reacts with any sodium ethoxide, it gives diethylether and also sodium bromide.

As in the sodium ethoxide, the negatively charged oxygen atom is  very much reactive and it  attacks on the bromine containing a carbon of the ethyl bromide and it replaces it forming methyl ethoxide. This type of reaction is sometimes known as SN2.      

answer: your mm

explanation:

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.