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Exams & Certifications

Chemistry Quizzes, Questions & Answers

Recent Chemistry Quizzes

Basic Chemistry Concepts Quiz: Exam!

Questions: 15 | Attempts: 264 | Last updated: Mar 21, 2025

Sample Question
What will happen to most matter that is heated?

It Expands

It Changes Color

It Contracts

Nothing

Pre-test Chemistry B Quiz Block 4

Questions: 10 | Attempts: 167 | Last updated: Mar 21, 2025

Sample Question
Which of the following best describes the difference between a scientific hypothesis and a scientific theory? (AZ HS Science S1:C1:PO1)

Once a scientific hypothesis has been proven, it becomes known as a theory.

A scientific hypothesis must be testable, while a theory does not have to be tested.

A scientific hypothesis is a testable assumption, while a theory is a well-verified idea used to explain a broad range of phenomena.

Only a scientific hypothesis is subject to scrutiny, while a theory does not change.

A Practice Test On Chemistry! Trivia Questions Quiz

Questions: 25 | Attempts: 175 | Last updated: Mar 20, 2025

Sample Question
Particles of matter that make up the nucleus of the atom are ___.

Protons and neutrons

Protons and electrons

Electrons and neutrons

Ions and isotopes

Test Your Knowledge About Chemical Mixture! Trivia Quiz

Questions: 5 | Attempts: 155 | Last updated: Mar 20, 2025

Sample Question
What are the two main types of mixtures?

Solutes and solvents

Heterogeneous and homogeneous

Saturated and supersaturated

None of the above

Grade 8 Chapter 6 Physical Science

Questions: 20 | Attempts: 125 | Last updated: Jan 14, 2025

Sample Question
Chemistry is...

A characteristic of a substance that can be observed without changing the substance into another substance.

The study of matter and how matter changes.

Anything that has mass and takes up space.

A rapid reaction between oxygen and a substance called a fuel.

AP Chemistry Second Semester Pre-test

Questions: 19 | Attempts: 110 | Last updated: Mar 22, 2025

Sample Question

Removing a small amount of oxygen gas.

Removing a small amount of barium oxide.

Adding helium gas to the vessel.

Lowering the temperature.

Isaz Chemistry A Block 3 Pre-test

Questions: 10 | Attempts: 65 | Last updated: May 23, 2025

Sample Question
A description of how close a measurement is to the true value of the quantity measured. (AZ HS Science S1:C2:PO3)

Accuracy

Liter

Kilogram

Energy

Water As A Solvent and Hard Water Notes Quiz

Questions: 10 | Attempts: 138 | Last updated: Mar 17, 2025

Sample Question
Water is a universal solvent because:

Water is polar and can dissolve more substances than any other liquid

Solutes are not polar molecules

Water is made up hydrogen and oxygen atoms

Water has a neutral pH

6.11 Random Questions Units 1-5

Questions: 10 | Attempts: 145 | Last updated: Aug 8, 2025

Sample Question
The electron was first proposed to exist based primarily on the results of which experiment?

Thomson's cathode ray tube experiment

Rutherford's gold foil experiment

Bohr's interpretation of the balmer formula

Frankensteins Transylvania experiments with lightning and corpses

Is Matter Around US Pure? Quiz

Questions: 15 | Attempts: 34109 | Last updated: Sep 9, 2025

Sample Question
Rusting of an article made up of iron is called ____________.

Corrosion, and it is a physical as well as chemical change

Dissolution, and it is a physical change

Corrosion, and it is a chemical change

Dissolution, and it is a chemical change

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