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vivado [14]
3 years ago
12

If you start with 5 molecules of O2 in the reaction 2Mg+O2--> 2MgO, how much Mg will you need?

Chemistry
1 answer:
joja [24]3 years ago
8 0
You will need 4 molecules of O2.
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2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

Explanation:

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Reactants used in the reaction are -

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Hence, the balanced equation is -

2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

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