Chemistry
Grade-9
Easy
Question
The overall charge in a compound must be ____________, So that the charge of iron in Fe2O3 can be calculated as 3+.
- 2+
- 1+
- 0
- 1-
Hint:
Generally compounds are neutral.
The correct answer is: 0
- The overall charge in a compound must be zero.
- Generally compounds are neutral balancing out the cationic and anionic charges.
- In the compound Fe2O3 the expected charge of Fe is +3 and we know charge of oxygen is -2. There are two Fe and three O, the balances out.
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