COMPOUNDS
5.8 - Chemical Formulas for Ionic compounds
Write the chemical formula involving strontium and nitrate
From step 2, we need 1 Sr+2 ion and 2 NO3- ions.
We need to use subscripts to show the number of Sr+2 ion and NO3- ions in the formula. Showing 1 Sr+2ion is easy. But showing 2 NO3- ions will involve putting a bracket around NO3- and a subscript 2 outside the bracket like this
(NO3)2
to represent that we need to units of NO3-in the chemical formula.
Step 3:
| Sr(NO3)2 |