Question:
Chemical formula of calcium nitrate is —
Chemical formula of calcium nitrate is —
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Always use the criss-cross method to balance ionic charges when writing chemical formulas.
Updated On: Nov 5, 2025
- CaNO3
- Ca(NO3)2
- Ca3NO3
- Ca2NO3
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The Correct Option is B
Solution and Explanation
Step 1: Write the ions.
Calcium ion: Ca2+
Nitrate ion: NO3–
Step 2: Balance the charges.
To balance the +2 charge of calcium, two nitrate ions (each with –1 charge) are required.
Step 3: Write the formula.
\[ \text{Ca}^{2+} + 2(\text{NO}_3^-) \Rightarrow \text{Ca(NO}_3)_2 \] Step 4: Conclusion.
Hence, the correct chemical formula of calcium nitrate is Ca(NO3){2}.
Calcium ion: Ca2+
Nitrate ion: NO3–
Step 2: Balance the charges.
To balance the +2 charge of calcium, two nitrate ions (each with –1 charge) are required.
Step 3: Write the formula.
\[ \text{Ca}^{2+} + 2(\text{NO}_3^-) \Rightarrow \text{Ca(NO}_3)_2 \] Step 4: Conclusion.
Hence, the correct chemical formula of calcium nitrate is Ca(NO3){2}.
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