Free interactive tool
Interactive periodic table
Search all 118 elements from NIH PubChem and open their reference profiles.
Open tool ↗Qemvoryx / interactive desk
Make room for discovery.
Choose a tool, practise a skill or create a plan. Everything here is free.
Free interactive tool
Reaction balancer
Balance neutral chemical equations using atom conservation.
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Formula composition
Count atoms and calculate elemental mass percentages.
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Solution molarity
Convert solute mass and solution volume to amount concentration.
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Dilution calculator
Use C₁V₁ = C₂V₂; all concentration values must use the same units.
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Ideal gas explorer
Estimate P = nRT/V for an ideal gas, using kPa, litres and kelvin.
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Compound library
Explore common compounds, formulas and structural concepts.
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Reaction exercise library
Browse atom-conservation exercises and open the balancer.
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