Here are the twentysix practice quizzes currently available on ChemQuiz.net:
Quizzes by Chemistry topic:
Science Fundamentals
 Density Calculations Quiz
 calculate density, mass or volume of over 150 different materials
 g/cm^{3} or k/m^{3}; simple or word problems
 Percent Error & Percent Yield Quiz
 calculate percent error and percent yield in chemical reactions
 word problems draw from hundreds of chemical compounds
 Scientific Notation Quiz
 convert between scientific notation and decimal notation
 fillintheblank and multiple choice questions
 SI Conversions Quiz
 convert between SI prefixes (e.g., grams to milligrams)
 onestep and twostep conversions
 Significant Figures Quiz
 count significant figures (“sig figs”) in a variety of numbers in decimal or scientific notation
 perform simple arithmetic calculations and report answers with correct number of sig figs
Atoms
 Electron Configuration Quiz
 determine electron configuration or element from the first 102 elements
 Elements & Isotopes Quiz
 determine names, symbols and atomic numbers for main group, transition and inner transition elements
 name isotopes, determine isotope notation and count number of subatomic particles for hundreds of isotopes
 determine names, symbols and atomic numbers for main group, transition and inner transition elements
 Lewis Dot Structures Quiz
 draw and identify Lewis dot structures for the main group elements
 predict the number of bonds and charges of ions that elements can form based on their dot structures
 Light & Energy Quiz
 convert between photon frequency, wavelength and energy
 perform electron energy level and chemical bond dissociation energy calculations
 Nuclear Reactions Quiz
 determine missing particle in nuclear decay equations
 isotope symbol problems & word problems
Chemical Compounds
 Mass Ratios, Percent Composition & Empirical Formulas Quiz
 calculate mass ratios and percent composition or determine empirical formulas ( new! ) of chemical compounds
 chemical formulas or compound names
 Naming Compounds & Calculating Molar Masses Quiz
 name chemical compounds, both ionic & molecular
 calculate molar masses of chemical compounds, by formula & name
Intermolecular Forces and Properties
 Concentrations of Solutions Quiz
 calculate molarity (concentration) of a solution
 calculate concentrations and volumes involved in dilutions
 multiple unit options; simple or word problems; grams and moles
 Gas Laws Quiz
 Boyle’s Law, Charles’ Law, GayLussac’s Law, Combined Gas Law & Ideal Gas Law
 multiple unit options; simple or word problems; chemical formulas or names
Chemical Reactions
 Balancing, Identifying & Predicting Chemical Equations Quiz
 over 300 chemical equations to balance, identify and/or predict
 combination, decomposition, single replacement, double replacement and combustion
 Molar Conversions Quiz
 convert between moles and a variety of units
 chemical formulas or compound names; simple or word problems
 Stoichiometry & Limiting Reagents Quiz
 stoichiometry and limiting reagents problems
 balanced and unbalanced equations; chemical formulas or names; grams, moles and particles
 calculate percent yield of a chemical reaction
Thermodynamics
 Calorimetry Quiz
 perform calculations as heat is absorbed or released during a temperature change
 multiple unit options; simple or word problems; grams and moles
 Enthalpy Calculations Quiz
 calculate heat absorbed or released by a chemical or physical change
 calculate quantity of a chemical required to absorb or release a given amount of heat
 multiple unit options; simple or word problems; chemical formulas or names
 Hess’s Law Quiz ( new! )
 calculate heat of reactions from compound heats of formation or heats of reactions
 over 100 chemical reactions
 Thermochemical Equations Quiz
 over 100 thermochemical equations with heats of reactions
 stoichiometry and limiting reagents problems
 balanced and unbalanced equations; chemical formulas or names; grams and moles; percent yield
Equilibrium
 Chemical Equilibrium Quiz
 write chemical equilibrium expressions, convert between Kc and Kp, and calculate equilibrium constants and chemical quantities
 balanced and unbalanced equations; multiple unit options; simple or word problems
 Solubility Quiz
 calculate solubility and K_{sp} values for over 180 solutes
 calculate the concentration of individual ions in a saturated solution
 multiple unit options; simple or word problems; chemical formulas or names
Acids and Bases
 AcidBase Equilibrium Quiz
 calculate concentration, pH/pOH, K_{a}/K_{b} of weak acids and bases
 calculate percent ionization of weak acids & bases
 AcidBase Neutralization Quiz
 calculate analyte concentrations and titrant volumes for a variety of acidbase neutralizations
 strongstrong and weakstrong reactions
 pH and pOH Calculations Quiz
 calculate pH and pOH from hydrogen ion (H^{+}) and hydroxide ion (OH^{–}) concentrations
 calculate hydrogen ion (H^{+}) and hydroxide ion (OH^{–}) concentrations from pH and pOH
All quizzes in alphabetical order:

 AcidBase Equilibrium Quiz
 AcidBase Neutralization Quiz
 Balancing, Identifying & Predicting Chemical Equations Quiz
 Calorimetry Quiz
 Chemical Equilibrium Quiz
 Concentrations of Solutions Quiz
 Density Calculations Quiz
 Electron Configuration Quiz
 Elements & Isotopes Quiz
 Enthalpy Calculations Quiz
 Gas Laws Quiz
 Hess’s Law Quiz ( new! )
 Lewis Dot Structures Quiz
 Light & Energy Quiz
 Mass Ratios, Percent Composition & Empirical Formulas Quiz
 Molar Conversions Quiz
 Naming Compounds & Calculating Molar Masses Quiz
 Nuclear Reactions Quiz
 Percent Error & Percent Yield Quiz
 pH and pOH Calculations Quiz
 Scientific Notation Quiz
 SI Conversions Quiz
 Significant Figures Quiz
 Solubility Quiz
 Stoichiometry & Limiting Reagents Quiz
 Thermochemical Equations Quiz
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