Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Liam Anderson

FREE Resource

Dr. B demonstrates how to balance a chemical equation by ensuring equal numbers of carbon, hydrogen, and oxygen atoms on both sides. The equation is verified as balanced, and the concept of implied coefficients is explained. The tutorial concludes with a simple example, emphasizing the ease of balancing such equations.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in balancing a chemical equation?

Remove excess reactants

Change the chemical formulas

Add coefficients to the products

Count the number of atoms for each element

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Two

Four

One

Three

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean when a chemical equation is balanced?

The number of molecules is the same on both sides

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

The equation has more reactants than products

The total mass is different on both sides

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the implied coefficient for each compound in a balanced equation if not written?

One

Two

Three

Zero

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it unnecessary to write the coefficient '1' in a balanced equation?

It makes the equation incorrect

It is assumed to be there

It is only used for complex equations

It changes the chemical formula