Atom Explorer
Explore atomic structure — protons, neutrons, and electrons.
Open toolAtom Explorer 2
Alternate view of atomic structure and electron orbitals.
Open toolChemical Bonding
Visualize how atoms bond to form molecules.
Open toolCovalent Bonding
See how atoms share electrons in covalent bonds.
Open toolDilution Calculator
Calculate concentrations when diluting a solution.
Open toolElectrochemistry Calculator
Cell potentials, Nernst equation, and electrolysis.
Open toolElectron Configuration
Write the electron configuration for any element.
Open toolElectron Shells
Visualize electron shell filling and orbital diagrams.
Open toolEquilibrium Calculator
Solve equilibrium constants and concentrations.
Open toolGas Law Calculator
Boyle, Charles, Avogadro, and ideal gas laws.
Open toolHalf-Life Calculator
Calculate radioactive decay over time.
Open toolInteractive Periodic Table
Click any element for detailed atomic data.
Open toolIonic Bonding
See how ions transfer electrons to form ionic compounds.
Open toolIsotope Calculator
Calculate atomic mass from isotope abundances.
Open toolMolality Calculator
Calculate molality (mol/kg) for any solution.
Open toolMolar Mass Calculator
Find the molar mass of any chemical formula.
Open toolMolarity Calculator
Calculate molarity (mol/L) from moles and volume.
Open toolMole Calculator
Convert between moles, mass, and number of particles.
Open toolMolecular Formula
Determine molecular formulas from empirical data.
Open toolMolecular Geometry
Explore VSEPR shapes and bond angles.
Open toolNernst Equation
Calculate cell potentials under non-standard conditions.
Open toolOrbital Diagram
Visualize electron orbitals for any element.
Open toolPeriodic Table
Full periodic table with element data.
Open toolpH Calculator
Calculate pH, pOH, and hydrogen ion concentration.
Open toolReaction Rate Calculator
Calculate reaction rates and rate laws.
Open toolStoichiometry Calculator
Balance equations and calculate reactant/product amounts.
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