You need to have 8 electrons to fill an atom and to fill bond the pairs need to equal 8
<u>Answer:</u> The number of moles of ammonium nitrate is 0.004 moles.
<u>Explanation:</u>
To calculate the number of moles for given molarity, we use the equation:

We are given:
Molarity of
solution = 0.125 M
Volume of solution = 32.5 mL
Putting values in above equation, we get:

Hence, the number of moles of ammonium nitrate is 0.004 moles.
<em>Answer:</em>
<em>Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.</em>
Explanation:
They work by lowering the activation energy