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22 votes
22 votes
H2O, OH

H2O, HCN

CN, OH

CN–, H2O

H2O, OH H2O, HCN CN, OH CN–, H2O-example-1
User Denton
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1 Answer

20 votes
20 votes

Answer:

The choose 2. H2O , HCN

I hope I helped you^_^

User Flakes
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