Chemistry Equation Balancer

Balance any chemical equation instantly. Simply photograph or type your reaction - get results in seconds.

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Step-by-Step Solution

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Solve Chemistry Problems in Seconds — Free, Fast, and Accurate

Stop spending hours on tedious calculations! Our AI chemistry calculator instantly solves chemical problems of any complexity. Simply upload a photo of your equation or type the formula — get step-by-step solutions with detailed explanations that actually make sense.

  • Stoichiometric Calculations: Automatic conversion between moles and grams, limiting reagent identification, percent yield calculations. No more struggling with complex proportions — our algorithm handles everything instantly, perfect for AP Chemistry and college courses.
  • Solution Concentrations: Instant calculation of molarity, normality, mass percentage, parts per million (ppm). Dilution and solution mixing problems solved with one click, including buffer calculations and pH adjustments.
  • Acids and Bases: Precise pH, pOH, and degree of dissociation calculations. Titration curve modeling with automatic graph generation — invaluable for laboratory reports and exam preparation.
  • Gas Law Problems: Combined gas law, ideal gas equation, partial pressures, and real gas behavior using van der Waals corrections. Essential for general chemistry and physical chemistry courses.
$2H_2 + O_2 \rightarrow 2H_2O$

Physical Chemistry Made Simple — From Thermodynamics to Kinetics

Complex physical chemistry topics no longer cause headaches. Our calculator transforms confusing formulas into clear, step-by-step solutions. Save time on calculations and focus on understanding the underlying principles that drive chemical processes.

  • Thermodynamics: Enthalpy of formation and combustion, entropy changes, Gibbs free energy calculations. Predicting reaction spontaneity and equilibrium temperatures with temperature-dependent heat capacities included.
  • Chemical Kinetics: Rate law determination, activation energy calculations, half-life problems, and integrated rate equations. Arrhenius equation applications for temperature effects on reaction rates.
  • Electrochemistry: Cell potential calculations, Nernst equation applications, electrolysis problems with current efficiency. Corrosion potential predictions and battery design calculations for engineering applications.
  • Quantum Chemistry: Wave function calculations, molecular orbital theory, spectroscopy problems including IR, NMR, and UV-Vis. Essential for advanced undergraduate and graduate-level physical chemistry.
$\Delta G = \Delta H - T\Delta S$

Chemical Equilibrium Under Control — Visualization and Predictions

Master reversible reaction mechanisms once and for all. Our AI doesn't just calculate — it explains why equilibrium shifts in specific directions and demonstrates this with interactive graphs that make complex concepts crystal clear.

  • Equilibrium Constants: Calculation of Kc, Kp, Ka, Kb, Ksp for any system. Temperature, pressure, and concentration effects using Le Chatelier's principle with quantitative predictions of changes.
  • Interactive Visualizations: Automatic generation of phase diagrams, kinetic curves, concentration vs. time plots. Visual learning helps retain material longer and understand complex equilibrium dynamics.
  • Reaction Mechanisms: Step-by-step breakdown of complex multi-stage processes. Rate-determining step identification, intermediate detection, catalysis effects. Perfect for organic chemistry and advanced reaction analysis.
  • Buffer Systems: Henderson-Hasselbalch equation applications, buffer capacity calculations, and optimal pH range determination. Critical for biochemistry and analytical chemistry applications.
$K_c = \frac{[C]^c[D]^d}{[A]^a[B]^b}$

Organic Chemistry Mastery — Mechanisms, Synthesis, and Spectroscopy

Conquer organic chemistry's most challenging aspects with AI-powered assistance. From complex synthesis pathways to spectroscopic analysis, our calculator provides the detailed explanations you need to excel in organic chemistry courses.

  • Reaction Mechanisms: Detailed arrow-pushing mechanisms for substitution, elimination, addition, and rearrangement reactions. Stereochemistry predictions and regioselectivity explanations with 3D molecular visualizations.
  • Synthetic Pathways: Multi-step synthesis design with retrosynthetic analysis. Functional group transformations, protecting group strategies, and yield optimization for complex target molecules.
  • Spectroscopic Analysis: NMR interpretation (1H, 13C, 2D), IR frequency assignments, mass spectrometry fragmentation patterns. Essential for structure determination and verification in organic laboratories.
  • Stereochemistry: R/S configuration assignments, E/Z nomenclature, conformational analysis, and optical activity calculations. Critical for understanding biological activity and pharmaceutical applications.
$S_N2$ vs $S_N1$

Real Reviews — Real Time Savings

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Kevin N.
Junior, MIT Chemistry Major

"Preparing for my Physical Chemistry final — this calculator is a lifesaver! Redox reactions that used to take me 30 minutes now solve in under a minute. Love how it shows intermediate oxidation states and electron balance steps clearly."

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Sarah A.
High School Senior, got into Stanford

"Scored a 5 on AP Chemistry! This website was my secret weapon — especially the photo recognition feature. When cramming for the exam, I'd just photograph problems from Zumdahl and get complete solutions with explanations."

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Dr. Victor I.
Professor, UC Berkeley Chemistry Dept.

"In 20 years of teaching, I haven't seen a more convenient tool. I use it to create different problem variants for exams. Students love the interactive equilibrium graphs — they finally understand Le Chatelier's principle visually."

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Maria L.
Pre-med Student, Johns Hopkins

"Organic chemistry was killing my GPA until I found this calculator. The mechanism breakdowns are incredible — shows every electron movement and explains why reactions go specific directions. MCAT prep became so much easier!"

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Alex T.
Chemical Engineering Student, Georgia Tech

"Excellent for process design calculations. Complex reaction engineering problems with multiple equilibria solved effortlessly. The thermodynamic data integration saves hours of manual lookup and calculation work."

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Emma W.
AP Chemistry Student, Phillips Exeter

"Perfect for checking homework before submitting. Just photograph problems from my textbook and get instant verification. The step-by-step explanations help me understand where I went wrong on practice exams."

Everything You Need to Know — Complete FAQ

Absolutely free, with no hidden fees or subscription requirements. Our mission is to make quality chemistry education accessible to every high school and college student. No limits on the number of problems you can solve.

Our algorithm handles all reaction types: simple synthesis and decomposition, complex substitution and double displacement, multi-step redox reactions with multiple oxidizing agents, organic reactions (substitution, addition, elimination), ionic equations in aqueous solutions, coordination complex reactions, nuclear reactions, and biochemical pathways.

We use advanced OCR technology with machine learning specifically trained on chemical formulas and equations. Recognizes clear handwriting, textbook formulas, whiteboard problems, and laboratory notebook entries. For best results, photograph in bright light with the camera perpendicular to the page.

Our calculation accuracy meets scientific publication standards — error margin less than 0.01%. Algorithms verified against thousands of problems from leading textbooks like Atkins, Chang, and Zumdahl. However, for critically important calculations, we recommend double-checking — we're a learning tool, not a replacement for professional software.

Our intelligent analyzer detects stoichiometric errors, mass and charge conservation violations, and thermodynamically impossible processes. Instead of meaningless results, you get clear explanations of the problems and specific suggestions for corrections with detailed error identification.

Complete confidentiality guaranteed — we don't store uploaded images, entered formulas, or calculation results. All data is processed in encrypted form and deleted immediately after providing answers. No tracking cookies, no user profiles, complete privacy protection.

Absolutely! Our calculator covers the entire AP Chemistry curriculum plus advanced topics for college-level general chemistry, organic chemistry, physical chemistry, and analytical chemistry. Perfect for homework verification, exam preparation, and understanding complex mechanisms.

Yes! We handle advanced organic mechanisms including electrophilic aromatic substitution, nucleophilic substitutions, eliminations, rearrangements, and multi-step synthesis problems. Includes stereochemistry analysis and regioselectivity predictions essential for organic chemistry success.

Perfect for lab calculations! Handles yield calculations, error analysis, concentration determinations, titration data analysis, spectroscopic calculations, and kinetics experiments. Helps verify your manual calculations and understand experimental procedures better.

Most problems solve within 5-15 seconds, even complex multi-step reactions and thermodynamic calculations. Processing time may increase slightly for very complex organic mechanisms or extensive equilibrium systems, but rarely exceeds 30 seconds.