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What is the first step when writing an ionic formula using the cancellation method?
Write the symbols of the ions in the order given by the compound name.
What is the second step?
Determine the charge of each ion using the Periodic Table or polyatomic ion table.
What is the third step?
Make sure the total positive and negative charges are equal.
What is the final step?
Write the formula using the smallest whole-number ratio of ions.