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This tests the student's ability to understand the components of formula.

", "licence": "None specified"}, "statement": "

This question checks a students knowledge of molecular formula.

", "advice": "

Helpful Links:   

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https://www.youtube.com/watch?v=QBj9N5MH6Ds

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https://youtu.be/Agfkx3RaoLc

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https://www.youtube.com/watch?v=c2EGD31YE5Q

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How many atoms of hydrogen are there in (NH4)3PO4?

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