High School Chemistry
Review core high school chemistry with practice on atoms, reactions, and calculations. These quizzes help you check understanding of key concepts and common exam-style questions, from the periodic table to acids and bases.
Quizzes
Acids and bases: pH, pOH, and neutralization
Test your understanding of acids and bases with questions on pH, pOH, Ka/Kb ideas, and neutralization. You’ll practice quick calculations, concept checks, and reaction reasoning from mixed difficulty. Pick a question count and difficulty level that fits your study session, then learn from instant feedback.
Stoichiometry: mole-to-mole and mass conversions
Strengthen your stoichiometry skills with mole-to-mole and mass conversion practice based on balanced chemical equations. Work through mixed-difficulty questions that build confidence with ratios, molar mass, and unit setup. Pick how many questions you want and the difficulty level, then learn from each attempt—no timer pressure.
Balancing chemical equations with coefficients
Get faster and more accurate at balancing chemical equations using coefficients. You’ll practice conserving atoms, spotting polyatomic ions, and scaling reactions cleanly. Choose your preferred question count and difficulty, then work at your own pace with no timer.
What you'll find here
- Curated quizzes focused on High School Chemistry
- Difficulty spread from easy to hard
- Randomized questions with instant feedback
- Quizzes you can replay and compare on the leaderboard
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Category FAQ
How many quizzes are available?
There are 3 quizzes with 333 questions total.
Are these quizzes timed?
No. Each question has 4 options and there is no timer, so you can work at your own pace.
What topics are covered in High School Chemistry?
You’ll see atoms, periodic trends, bonding, reactions, stoichiometry, acids and bases, and common calculation-based questions.
Do the quizzes include calculation problems like moles and balancing?
Yes. Expect balancing equations, mole relationships, and other multi-step chemistry calculations.
How hard are the quizzes and how long are they?
Difficulty and length vary across the 3 quizzes, so you can start with basics and progress to more challenging questions.
More to explore
What you’ll practice
These High School Chemistry quizzes cover the foundations you’ll see in class and exams, including atomic structure, bonding, the periodic table, and chemical reactions.
You’ll also practice quantitative skills like balancing equations, mole calculations, and interpreting simple lab data and graphs.
How the quizzes work
Each quiz question has 4 answer options and there’s no timer, so you can focus on accuracy and reasoning rather than speed.
Difficulty and length vary across the 3 quizzes, letting you start with fundamentals and move toward more multi-step problems as you improve.
- Atomic structure, isotopes, and electron configuration basics
- Periodic trends (radius, electronegativity, ionization energy)
- Bonding and intermolecular forces (ionic, covalent, metallic)
- Reactions and stoichiometry (balancing, moles, limiting reactants)
- Acids, bases, and pH concepts
- Solutions, concentration, and basic gas-law relationships
Helpful context and quick facts
Chemistry is often called the “central science” because it connects physics (matter and energy) to biology (life processes) through molecular interactions.
The periodic table’s repeating patterns come from electron arrangements, which is why elements in the same group tend to react in similar ways and form similar ions.