Ethane is gas used as fuel: a colorless odorless gas that is highly flammable.
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Answer:
Group 1
Explanation: because the compound has a formula of M2O , the number of valence electrons of M should be 1.
I think it is aluminum oxide
The answer is (3) HClO. In the Cl2, chlorine has an oxidation number of zero. In HCl, the oxidation number is -1. In HClO2, the oxidation number is +3. In HClO, it is +1. You can calculate this by using O with oxidation number of -2 and H with +1.