For the reaction, calculate how many moles of the product form when 0.032 mol of k completely reacts. assume that there is more than enough of the other reactant. 4k(s)+o2(g)→2k2o(s) express your answer using two significant figures.

0.016 moles of product will obtain.

Explanation:

Given data:

Moles of K = 0.032 mol

Moles of product = ?

Solution:

Chemical equation:

4K + O₂ →  2K₂O

Now we will compare the moles of K with K₂O.

          K          :           K₂O

           4         :            2

        0.032    :           2/4 ×0.032 = 0.016 mol

0.016 moles of product will obtain.

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.