In the balanced chemical reaction for the neutralization of calcium hydroxide with nitric acid, HNO3, the coefficient of water i

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In the balanced chemical reaction for the neutralization of calcium hydroxide with nitric acid, HNO3, the coefficient of water i

s In the balanced chemical reaction for the neutralization of calcium hydroxide with nitric acid, HNO3, the coefficient of water is:________. a. 2 b. 1 c. 3 d. 4

Chemistry

2 answers:

Gre4nikov [31] · Answer 1 · 2022-01-04T23:45:47+03:00

Answer:

The coefficient of water is 2 (option a)

Explanation:

Step 1: The unbalanced equation

Ca(OH)2 + HNO3 → Ca(NO3)2 + H2O

Step 2: Balancing the equation

Ca(OH)2 + HNO3 → Ca(NO3)2 + H2O

On the left side we have 1x N (in HNO3), on the right side we have 2x Ca(NO3)2.

To balance the amount of N on both sides, we have to multiply HNO3, on the left side, by 2.

Ca(OH)2 + 2HNO3 → Ca(NO3)2 + H2O

On the left side we have 4x H (2x in Ca(OH)2 and 2x in 2HNO3), On the right side we have 2x H (in H2O). To balance the amount of H on both sides, we have to multiply H2O, on the right side, by 2.

Now the equation is balanced.

Ca(OH)2 + 2HNO3 → Ca(NO3)2 + 2H2O

The coefficient of water is 2 (option a)

lara [203] · Answer 2 · 2022-01-04T22:36:49+03:00

Answer:

The answer to the question is letter a. 2

Explanation:

Write the formula of each compound

Calcium hydroxide = Ca(OH)₂

Nitric acid = HNO₃

Water = H₂O

Calcium nitrate = Ca(NO₃)₂

Chemical Reaction

Ca(OH)₂ + HNO₃ ⇒ Ca(NO₃)₂ + H₂O

Reactants Elements Products

1 Ca 1

1 N 2

3 H 2

5 O 7

Balanced Chemical Reaction

Ca(OH)₂ + 2HNO₃ ⇒ Ca(NO₃)₂ + 2H₂O

Reactants Elements Products

1 Ca 1

2 N 2

4 H 4

8 O 8