Exploring Chemical Equations

Exploring Chemical Equations

Assessment

Interactive Video

Science

6th - 10th Grade

Hard

NGSS
MS-PS1-5, MS-PS1-1

Standards-aligned

Created by

Lucas Foster

FREE Resource

Standards-aligned

NGSS.MS-PS1-5
,
NGSS.MS-PS1-1
This video tutorial by Mrs. H covers the basics of chemical reactions and equations. It explains the concepts of reactants and products, and how chemical reactions result in new substances with different properties. The tutorial also details how to write and balance chemical equations, emphasizing the importance of the law of conservation of mass. Through examples, it demonstrates the use of coefficients to balance equations, ensuring the number of atoms on both sides of the equation is equal.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do we call the substances we start with in a chemical reaction?

Catalysts

Reactants

Products

Enzymes

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical equation, what does the arrow symbol (→) represent?

Equals

Yields

Subtraction

Addition

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a word equation?

Na + Cl → NaCl

Magnesium + Oxygen → Magnesium Oxide

C + O2 → CO2

H2 + O2 → H2O

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for water?

H2O

O2

H2

HO2

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the law of conservation of mass state?

Matter cannot be created or destroyed.

Matter can be created or destroyed.

Energy can be created or destroyed.

Energy cannot be created or destroyed.

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we balance chemical equations?

To change the reactants into products.

To make the equation look neat.

To create new elements.

To ensure the same number of atoms of each element on both sides.

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the coefficient in a chemical equation?

The type of chemical bond.

The number of molecules of a substance.

The number of atoms in a molecule.

The state of matter.

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?