Balancing Chemical Reactions Concepts

Balancing Chemical Reactions Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Amelia Wright

FREE Resource

This video tutorial demonstrates how to balance the chemical equation for the reaction between potassium hydroxide and nitric acid. It explains the neutralization reaction, which results in the formation of a salt and water, and is exothermic. The tutorial provides a detailed walkthrough of counting atoms on both sides of the equation to ensure balance, highlighting common errors such as miscounting atoms. Dr. B concludes with a balanced equation and tips for avoiding mistakes.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the reactants in the chemical equation discussed in the video?

Sodium hydroxide and sulfuric acid

Potassium hydroxide and sulfuric acid

Potassium hydroxide and nitric acid

Sodium hydroxide and nitric acid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction occurs when potassium hydroxide and nitric acid are mixed?

Synthesis reaction

Neutralization reaction

Decomposition reaction

Combustion reaction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products formed in the neutralization reaction between potassium hydroxide and nitric acid?

Salt and water

Water and carbon dioxide

Salt and oxygen

Salt and hydrogen gas

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are present on each side of the balanced equation?

Five

Two

Three

Four

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of hydrogen atoms on each side of the balanced equation?

Four

One

Two

Three

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake to avoid when balancing chemical equations?

Ignoring the coefficients

Counting the same atom twice

Balancing only one side of the equation

Forgetting to count all atoms

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is the narrator of the video?

Dr. A

Dr. B

Dr. C

Dr. D