Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains the chemical equation involving baking soda and hydrochloric acid, resulting in sodium chloride, carbon dioxide, and water. It details the process of counting elements on both sides of the equation to ensure it is balanced. The tutorial highlights common mistakes, such as miscounting hydrogen and oxygen atoms, and provides a step-by-step guide to avoid these errors. Dr. B concludes with a summary of the balanced equation and thanks viewers for watching.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products formed when baking soda reacts with hydrochloric acid?

Sodium hydroxide and water

Sodium chloride, carbon dioxide, and water

Sodium bicarbonate and water

Hydrochloric acid and carbon dioxide

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are present on the reactant side of the equation?

Two

Four

Three

One

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element has three atoms on the reactant side?

Sodium

Oxygen

Carbon

Chlorine

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Four

One

Two

Three

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of chlorine atoms on the product side?

One

Three

Two

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean when a chemical equation is balanced?

The equation has more reactants than products

The number of atoms for each element is the same on both sides

The equation has more products than reactants

The reactants and products are in equal amounts

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake when balancing this equation?

Adding extra chlorine atoms

Counting too many sodium atoms

Forgetting to count all hydrogen atoms

Ignoring carbon atoms

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is the narrator of the video?

Dr. D

Dr. C

Dr. B

Dr. A