Question

Complete and balance the equation Ca(OH)2 +HNO3

Answer 1

2HNO3(aq) + Ca(OH)2(aq) → Ca(NO3)2(aq) + 2H2O(l)

its this i think

Answer 2

The complete and balanced equation for the reaction between calcium hydroxide (Ca(OH)2) and nitric acid (HNO3) is:

2HNO3(aq) + Ca(OH)2(aq) → Ca(NO3)2(aq) + 2H2O(l)

Here's a breakdown of the process:

1. Write the initial equation: Ca(OH)2 + HNO3 → ?

2. Identify the products: Calcium nitrate (Ca(NO3)2) and water (H2O) are likely products based on the reactants.

3. Balance the elements:

   - Calcium (Ca): Already balanced (1 on each side)

   - Oxygen (O): 8 in HNO3, 2 in Ca(OH)2, requires 6 in products. Add 2 H2O to the right side.

   - Nitrogen (N): 2 in HNO3, needs 2 in Ca(NO3)2. Double the HNO3 on the left side.

   - Hydrogen (H): 6 in HNO3, 2 in Ca(OH)2, requires 4 in H2O. Double the H2O on the right side.

4. Write the final balanced equation: 2HNO3(aq) + Ca(OH)2(aq) → Ca(NO3)2(aq) + 2H2O(l)

Important notes:

• The reaction state (aq) for aqueous (dissolved in water) is often omitted but included here for clarity.

• This reaction is exothermic, meaning it releases heat.

•  Both calcium hydroxide and nitric acid are corrosive and hazardous. Proper precautions should be taken when handling them.