Calcium nitrate formula by criss cross method
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Use the crisscross method to ensure that the final formula is neutral. Calcium nitrate is composed of a calcium cation and a nitrate anion. The charge is balanced by the presence of two nitrate ions and one calcium ion. Parentheses are used around the nitrate ion because more than one of the polyatomic ion is needed.
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elements Ca NO3 ( cross multiplication)
ions 2+ 1-
( calcium nitrate ) Ca(No3)2
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