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Write the steps are followed to write down the chemical formula of a substance. |
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Answer» Step 1: Write down the symbols of elements/ions side by side so that the positive radical is on the left and the negative radical is on the right hand side. Step 2: Write the valencies of the two radicals above their symbols to the right in superscript (Signs ‘+’ and ‘-‘ of the ions are omitted). Step 3: Reduce the valencies to simplest ratio if needed. Otherwise interchange the valencies of the elements/ions. Write these numbers as subscripts. However, ‘1’ appearing on the superscript of the symbol is omitted |
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