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White raven [17]
2 years ago
9

4Al(s) + 30₂(g) → 2Al2O3 (s)

Chemistry
1 answer:
Margaret [11]2 years ago
6 0
1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
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Vitamin C contains the elements C, H, and O. It is known to contain 40.9% C and 4.58% H by mass. The molar mass of vitamin C has
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Answer:

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Explanation:

First off, the<u> percent of oxygen by mass</u> of vitamin C is:

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Now we <u>convert each of those masses to moles</u>, using the <em>elements' respective atomic mass</em>:

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So the molecular formula for vitamin C is C₆H₈O₆

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