Which observation does not indicate a chemical reaction has occurred?

changing the total mass of the substances

evolution of heat and light as energy

The pH of a solution indicates what?

the concentration of (H₃O)+ ions

the concentration of (HO)- ions

the concentration of (H₂O)+ ions

the concentration of (HO₃)+ ions

Which of the following are indicators of a chemical reaction?

Color change, temperature change, gas production, and precipitate formation

Color change, temperature change, light emission, and sound production

Temperature change, gas production, light emission, and odor change

Color change, sound production, odor change, and precipitate formation

Balance the following chemical equation: _____ Al₂O₃ + _____ Fe → _____ Fe₂O₃ + _____ Al

1 Al₂O₃ + 2 Fe → 1 Fe₂O₃ + 2 Al

1 Al₂O₃ + 3 Fe → 2 Fe₂O₃ + 2 Al

2 Al₂O₃ + 3 Fe → 3 Fe₂O₃ + 4 Al

2 Al₂O₃ + 4 Fe → 3 Fe₂O₃ + 2 Al

Which of the following are characteristics of a chemical reaction?

Change in color, temperature, and formation of precipitate

Change in state, formation of gas, and emission of light

Change in temperature, emission of sound, and formation of gas

Change in color, emission of light, and formation of gas

Balance the following chemical equation. calcium oxide + water -> calcium hydroxide ______ + ______ ______

calcium oxide + water calcium hydroxide

Which of the following are indicators of a chemical change?

Change in color and formation of a precipitate

Change in state and change in temperature

Formation of a gas and change in size

Change in texture and change in mass

1. Which of the following lists the three steps to balance an equation?

Identify each element present in the equation, count the number of atoms of each element in the reactants and products, and adjust the coefficients to get the same number of atoms of each element on both sides.

Write the equation, solve the equation, and check the solution.

Identify the reactants, write the products, and balance the charges.

What can distinguish a physical change from a chemical change?

The formation of a new substance

Which of the following are types of evidence that a chemical reaction took place?

Change in color, formation of a precipitate, and evolution of gas

Increase in temperature, decrease in volume, and change in state

Absorption of light, emission of sound, and increase in pressure

Change in texture, change in taste, and change in smell

Why must an equation be balanced?

To ensure the equation is mathematically correct and follows the law of conservation of mass.

To make the equation look aesthetically pleasing.

To confuse students learning chemistry.

To make the equation easier to solve.

Unit 5 Study Guide

Quiz

•

Science

•

11th Grade

•

Practice Problem

•

Hard

Caryn Butler

Used 5+ times

FREE Resource

34 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This type of change occurs when one or more new substances are formed.

physical

chemical

intensive

extensive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This is a beginning substance in a chemical reaction.

product

reactant

chemical

compound

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a characteristic of an acid?

Tastes sour

Have a bitter, soapy taste

Some can burn through materials

Feels sticky

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False: Bases conduct electricity well.

True

False

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is the correct name for the compound with the molecular formula of H₂O?

Hydrogen oxide

Dihydrogen oxide

Dihydrogen monoxide

Hydrogen peroxide

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to balance an equation?

to see what chemicals are used

to determine the number of products

to satisfy the law of conservation of mass

to describe the reactants and products of a change

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms represent a diatomic molecule?

one

two

four

eight

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

34 questions

KS3 Forces Quiz

Quiz

•

6th - 12th Grade

30 questions

Stars and Galaxies

Quiz

•

8th - 12th Grade

38 questions

Practice your English Skills

Quiz

•

6th - 12th Grade

30 questions

3º First Term

Quiz

•

9th - 12th Grade

33 questions

Review ELISA, DNA sequencing

Quiz

•

9th - 12th Grade

32 questions

Food Science Ch 9 Complex Carbohydrates Test REVIEW

Quiz

•

11th - 12th Grade

30 questions

Global Climate Change Review

Quiz

•

9th - 12th Grade

31 questions

Cosmology

Quiz

•

11th - 12th Grade

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

20 questions

Figurative Language Review

Quiz

•

6th Grade

Discover more resources for Science

14 questions

Natural Selection and Adaptation

Lesson

•

9th - 12th Grade

38 questions

Water Cycle and Groundwater

Quiz

•

9th - 12th Grade

12 questions

Cell Organelles and Their Functions

Lesson

•

9th - 12th Grade

12 questions

Homeostasis: Positive and Negative Feedback Loops

Interactive video

•

11th Grade

13 questions

Amoeba Sisters: Biomolecules

Interactive video

•

9th - 12th Grade

60 questions

2025 Genetics Test Study Guide

Quiz

•

9th - 12th Grade

10 questions

Understand Cell Functions and Organelles

Quiz

•

9th - 12th Grade

16 questions

Explore Cell Cycle Stages and Mitosis

Quiz

•

9th - 12th Grade

Unit 5 Study Guide

34 questions

This type of change occurs when one or more new substances are formed.

This is a beginning substance in a chemical reaction.

Which of the following is not a characteristic of an acid?

True or False: Bases conduct electricity well.

What is the correct name for the compound with the molecular formula of H₂O?

Why is it important to balance an equation?

How many atoms represent a diatomic molecule?

This change happens because a substance's identity does not change.

A substance with a pH of 7 is considered:

This is one of the new substances formed in a chemical reaction.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science