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The valancies of the constituent elements' chemical formula are same on every formula. But variable valancies are different for example if iron and sulpher have different valency how will I understand which valency I should use for finding out the formula |
| Answer» The valancies of the constituent elements' chemical formula are same on every formula. But variable valancies are different for example if iron and sulpher have different valency how will I understand which valency I should use for finding out the formula | |