Balance the Chemical Equation:

To balance the chemical equation HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O, we need to ensure that the number of each type of atom is the same on both sides of the equation.

Step 1: Write the Unbalanced Equation
HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O

Step 2: Balance the Equation
1. Balance the hydrogen atoms by adding a coefficient of 2 in front of HNO3:
2HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O
2. Balance the oxygen atoms by adding a coefficient of 2 in front of H2O:
2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O
3. Balance the calcium atoms by adding a coefficient of 1 in front of Ca(NO3)2:
2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O
4. Balance the nitrate ions by adding a coefficient of 2 in front of Ca(NO3)2:
2HNO3 + Ca(OH)2 = 2Ca(NO3)2 + 2H2O

Step 3: Check the Balanced Equation
2HNO3 + Ca(OH)2 = 2Ca(NO3)2 + 2H2O

Now, the equation is balanced with an equal number of atoms on both sides.

Conclusion:
By following these steps, the given chemical equation HNO3 + Ca(OH)2 = Ca(NO3)2 + H2O has been successfully balanced. It is essential to balance chemical equations to accurately represent the chemical reactions occurring.

2HNO3+Ca(OH)2=Ca(NO3)2+2H2O..