How to use the chemistry equation quiz
Read the problem carefully and determine which quantities are given, which quantity must be found, and which conditions remain constant. Then select the equation that connects those variables.
Free Chemistry Practice Tool
Chemistry Equation Quiz
Read each chemistry problem and identify which equation should be used. No calculations are required.
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Question 1 of 20
5%
Chemistry Equation Recognition
Which equation should be used to solve this problem?
Select the equation that matches the information and quantities described in the problem. You do not need to solve it.
The first chemistry problem will appear here.
Select an equation to begin.
Equation
Equation name
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Round Complete
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You completed all 20 chemistry equation questions.
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Focus on choosing the equation
You do not need to substitute numbers or complete any calculations. The goal is to practice recognizing which chemistry relationship applies before beginning a solution.
Review the feedback
After submitting an answer, the quiz identifies the correct equation and briefly explains why it applies to the problem.
Free Chemistry Equation Practice
General chemistry problems often require students to choose among several similar-looking equations. Before completing a calculation, students must first recognize which variables are involved and which chemistry principle connects them.
This free chemistry equation quiz presents short word problems with multiple-choice equations. The objective is to identify the appropriate equation without completing the numerical solution.
Identify the Known and Unknown Quantities
Look for the measurements provided in the problem, such as pressure, volume, temperature, concentration, heat, mass, or time. Then identify the quantity the problem asks you to determine.
Pay Attention to Constant Conditions
Some chemistry equations apply only when specific quantities remain constant. For example, gas-law questions may state that pressure, temperature, volume, or the number of moles does not change.
Build Equation Recognition Skills
Repeated practice helps students distinguish between equations that use similar variables and choose the most direct relationship for each problem.