158k views
4 votes
Balance the chemical equations

Balance the chemical equations-example-1

1 Answer

4 votes

Answer:

Step-by-step explanation:

1). Ca(NO₃)₂ + KI → CaI + K(NO₃)₂

This equation is incorrect.

When Ca⁺⁺ reacts with I⁻, final product is CaI₂

And when K⁺ react with NO₃⁻, final product is KNO₃

Hence the equation will be,

Ca(NO₃)₂ + KI → CaI₂ + KNO₃

Now we have to balance this equation.

Ca(NO₃)₂ + 2KI → CaI₂ + KNO₃

Ca(NO₃)₂ + 2KI → CaI₂ + 2KNO₃

2). Ca(NO₃)₂ + KOH → CaOH + K(NO₃)₂

This equation is incorrect,

Since the reaction of Ca⁺⁺ with OH⁻ gives the final product Ca(OH)₂

And final product of K⁺ and NO₃⁻ is KNO₃

Therefore, the equation will be,

Ca(NO₃)₂ + KOH → Ca(OH)₂ + KNO₃

Now we will balance this equation by changing the coefficients of the molecules until the number of atoms on both the sides become equal.

Ca(NO₃)₂ + KOH → Ca(OH)₂ + 2KNO₃

Ca(NO₃)₂ + 2KOH → Ca(OH)₂ + 2KNO₃

3). Ca(NO₃)₂ + Na₂C₂O₄ → CaC₂O₄ + 2Na(NO₃)₂

This equation is incorrect,

Since the reaction of Na⁺ and NO₃⁻ gives the final product NaNO₃.

Therefore, the correct equation will be,

Ca(NO₃)₂ + Na₂C₂O₄ → CaC₂O₄ + 2NaNO₃

This equation is in the balanced form.

User Igor Semin
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.