Chem Engine
Your all-in-one chemistry companion — balance equations, predict reactions, explore molecules, and more.
Linear Equations
Solve systems of linear equations
Non-Linear Equations
Newton-Raphson solver
Balance Equation
Balance chemical equations
Predict Reaction
Predict reaction products
Molecular Structure
3D molecular viewer
Stoichiometry
Moles, grams & volume calc
Periodic Table
Interactive element explorer
pH Calculator
Acid/base pH calculations
Solve Linear Equations
Enter a system of linear equations (one per line). Variables: x, y, z, w ... ?
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Solve Non-Linear Equations
Enter a system of non-linear equations (one per line). Uses Newton-Raphson method. ?
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Balance Chemical Equation
Enter an unbalanced chemical equation. Use -> or →.
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Predict Reaction Products
Enter reactants (comma or + separated). Molecular formulas only. ?
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Molecular Structure Viewer
Enter a molecular formula to view its 3D structure (via PubChem). ?
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Stoichiometry Calculator
Enter a balanced equation. Optionally set a known amount to scale — otherwise the smallest coefficient is normalised to 1. ?
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Periodic Table
Click an element for details.
pH Calculator
Enter a chemical formula and concentration — type (acid/base, strong/weak) is detected automatically. ?