Please help don’t understand this I attached the question

Chemistry

2 answers:

Rasek [7]1 year ago

8 0

Answer:

58.32

Explanation:

The mass number is one mole and for Mg it is 24.306 for O it is 15.999 and for H it is 1.008. because O and H have 2, you multiply them by 2 and add all the numbers and it equals 58.32

Eva8 [605]1 year ago

7 0

When you take the molar mass of the elements and add them all together you get 58.32g/mol

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