Question

anyone answer these questions ​

Answer 1

Answer:

3. h² means two atoms forming one molecule of hydrogen whereas 2H means two molecule of hydrogen...

4. The valency of of iron(Fe) is +3

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Answer 2

Answer:

3. H2 is a molecule form and it is in gas phase whereas 2H is 2 atoms of hydrogen

4. +3 is the valency of Fe in Fecl3

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