Understanding Chemical Equations and the Law of Conservation of Matter

Understanding Chemical Equations and the Law of Conservation of Matter

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Evelyn Hayes

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of balancing a chemical equation?

To ensure the equation looks symmetrical

To make the equation easier to read

To confirm the same number of atoms on both sides

To verify the same number of molecules on both sides

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do coefficients and subscripts work together in a chemical equation?

They are subtracted to find the difference in atoms

They are multiplied to determine the total number of atoms

They are divided to find the average number of atoms

They are added together to find the total number of atoms

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of 2 H2O, how many hydrogen atoms are present?

6

2

8

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method is suggested for verifying if a chemical equation is balanced?

Memorizing the equation

Drawing a diagram

Creating a chart to count atoms

Using a calculator

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to ensure a chemical equation is balanced?

To change the chemical properties

To make the equation more complex

To simplify the equation

To adhere to the law of conservation of matter