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tresset_1 [31]
3 years ago
8

An unknown element is determined to have 22 neutrons and a mass number of 40.

Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
7 0
It’s Calcium hope that helps!
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Explanation:

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The mass in grams, to five sig figs, of carbon dioxide produced when 22.031 grams of C6H6 is combusted is the same as the mass o
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Answer:

74.566

Explanation:

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