<h2>
Answer: # of neutrons = 9</h2>
<h3>
Explanation:</h3>
# of neutrons = mass number - atomic number
= 17 - 8
= 9
<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>
In a chemical equation coefficients indicate the number of molecules/atoms involved in the reaction.
When you are converting grams to moles, the operation that you will be doing is dividing by the molar mass to obtain the amount of moles of the given sample.
SI Unit
I'm not 100% sure but I think that's right. Hope I helped you in any way.
