Out of the following choices, the one that shows a periodic pattern is "the mother takes her medication everyday at 7."
Answer:
Both A and B will be unreactive!
Explanation:
10=2, 8
18=2, 8, 8
To answer this question, all you to do is to divide the mass by the molar mass and that should get you your moles.

<em>= 3.5 mol NH₄</em>
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