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Chemistry Quizzes, Questions & Answers

Recent Chemistry Quizzes

Chemistry Quiz - Level 3

Questions: 11 | Attempts: 504 | Last updated: Mar 21, 2025

Sample Question
Elements with different than expected masses are called...

Cations

Anions

Isotopes

Atoms

Chemistry Quiz - Level 2

Questions: 16 | Attempts: 1150 | Last updated: Mar 18, 2025

Sample Question
Atoms are neutral because they have _______________ ?

The same number of protons and neutrons

The same number of electrons and neutrons

The same number of protons and electrons

Different numbers of protons and neutrons

Chemistry By Jocelyn Ventura

Questions: 25 | Attempts: 499 | Last updated: Sep 4, 2025

Sample Question
A glowing match was dropped into a dry gas jar containing one gas only. The match (but not the gas) caught a light. Which gas is most likely present in the jar?

A. oxygen

B. hydrogen

C. Carbon dioxide

D. Carbon monoxide

Key Terms For Chemical Building Blocks Chapter 1 Section 1

Questions: 15 | Attempts: 273 | Last updated: Mar 16, 2025

Sample Question
physical property

Is a single kind of matter that is pure and has a specific set of properties.

Is the study of the properties of matter and how matter changes.

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

A pure substance that cannot be broken down into other substances by chemical or physical means.

Key Terms Test Chemical Interactions Chapter 1 Section 1

Questions: 11 | Attempts: 309 | Last updated: Feb 23, 2025

Sample Question
scientific theory

A well-tested idea that explains and connects a wide range of observations.

The smallest particle of an element is called an

Two or more substances that are mixed together but not chemically combined.

A substance made of two or more elements chemically combined in a specific ratio, or proportion.

Chemistry Practice Review Questions!

Questions: 16 | Attempts: 7842 | Last updated: Mar 18, 2025

Sample Question
What is matter?

Anything that has electrons

Anything that has mass and is made of atoms

Anything that has energy

Anything that is classified as a compound

A.P. Chemistry - Introductory Quiz

Questions: 15 | Attempts: 91 | Last updated: Jun 19, 2025

Sample Question
The compound copper(I) sulfate would have which formula?

Cu2SO4

CuSO4

Cu2(SO4)

Cu(SO4)2

Cop 2015 Pharmaceutics Lecture 08/17/2011

Questions: 15 | Attempts: 63 | Last updated: Jun 19, 2025

Sample Question
The cation K+, when added to a solution, increases the pH of that solution.

True

False

Campbell 2.3-2.4 Reading Quiz

Questions: 20 | Attempts: 274 | Last updated: Mar 20, 2025

Sample Question
Which of these relationships is true of an uncharged atom?

Atomic mass is equal to the number of electrons.

Number of protons is equal to the number of electrons.

Number of neutrons is equal to the number of protons.

Atomic mass is equal to the atomic number.

Number of electrons is equal to the number of neutrons.

Ch 2 Minerals Section 1 Matter

Questions: 19 | Attempts: 139 | Last updated: Jul 22, 2025

Sample Question
Which of the following is NOT one of the eight most common elements in Earth's continental crust?

Carbon

Silicon

Oxygen

Aluminum

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