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21-05-2021
Chemistry

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Which of the following reactions is correctly balanced?
3 Ca + 1 N2 → Ca3N2
O 2 P2 + 3 H2 → 2 PH3
O 2 HgBr → 1 Hg + 1 Br2
O 2 Sr + 102 — 1 sro

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pygmacombs pygmacombs

21-05-2021

I believe it is 3 CA + 1 N2 -> Ca3N2; I cannot tell whether the O(s) in front of the next three are supposed to be oxygens, if so then yes definitely the first line is correctly balanced.

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