Why do chemical equations need to be balanced?

Atoms are never created or destroyed in a reaction, so every element must appear the same number of times on both sides. Balancing adds coefficients - the big numbers in front of formulas - until the counts match.

How does this balancer work?

It builds one conservation row per element with products counted negatively, then solves the homogeneous system exactly using rational arithmetic and scales the answer to the smallest whole-number coefficients.

How do I write formulas with brackets?

Use ordinary round brackets for groups, like Ca(OH)2 or Mg3(PO4)2. Nested brackets work too. Symbols are case-sensitive: Co is cobalt but CO is carbon monoxide.

What do the numbers in the check table mean?

For each element it shows how many atoms the balanced equation has on the left versus the right. When both columns match on every row, the equation is truly balanced.

Chemical Equation Balancer

Type a reaction with an arrow and get the smallest whole-number coefficients instantly - plus proof that every element balances.

Your equation

Try:

Balanced

2H₂ + O₂ ⟶ 2H₂O

Atom check

Element	Left side	Right side	Status
H	4	4	Balanced
O	2	2	Balanced

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Offline

Works without net

Made for chemistry class in Nepal

Where grade 11/12 students balance equations for exams and entrance tests.

Grade 11/12

NEB chemistry students balance reactions for boards.

IOE entrance

Engineering aspirants drill balancing questions.

CEE / MBBS

Medical entrance tests include stoichiometry.

Bridge courses

Bridge course students revise basics.

Tuition centres

Teachers show balanced forms fast.

Rural schools

Schools with few books use it offline.

What is a chemical equation balancer, and how does this free Nepal tool work?

A chemical equation balancer makes the number of atoms of each element equal on both sides of a reaction. Scolar's balancer is a free, browser-only tool for Nepal: type a reaction like H2 + O2 -> H2O and see the balanced coefficients instantly. No sign-up, no watermark, nothing uploaded.

Why it is free, with no sign-up and unlimited use

The balancing runs on your device, so the equations you enter are never stored and no account is needed. That keeps the tool 100% free, adds no watermark, asks for no email, and lets you balance unlimited reactions.

How to balance an equation, step by step

Type the unbalanced reaction with '+' and '->' (for example Fe + O2 -> Fe2O3).
The tool counts atoms and solves the coefficients.
Copy the balanced equation with whole numbers.

Chemistry in the Nepali curriculum

Nepal's Grade 11 and 12 chemistry syllabus and IOE, CEE and MBBS entrance exams expect students to balance equations quickly. This tool helps a student in Kathmandu or a rural school check their work and learn the method, entirely offline after the page opens.

“A Nepali science student should not buy an app to balance H2 + O2. Type it - free.”

Equations balanced free in Nepal

I paste the reaction and get balanced coefficients for NEB chemistry. Free, no app.

SA Samikshya Adhikari Grade 12 · Hetauda

Entrance prep needs fast balancing. This checks my answers instantly, offline.

RC Roshan Chaudhary IOE aspirant · KTM

I show students the balanced equation on screen. Saves time, fully free.

MP Manoj Pandey Tuition teacher · Biratnagar

How it works

Type your reaction with formulas separated by + and an arrow -> between the two sides.

The balanced coefficients appear instantly, scaled to the smallest whole numbers.

Check the atom table - every element must show equal counts on both sides.

Why use this tool?

Solves the system exactly with rational arithmetic - no floating-point guesswork.
Supports brackets and nested groups like Ca(OH)2, Mg3(PO4)2 or Fe2(SO4)3.
Symbols are case-sensitive: Co is cobalt, CO is carbon monoxide.
Works offline in your browser - great for checking homework before submission.

Frequently asked questions

Why do equations need balancing?

Atoms are conserved in every reaction, so each element must appear equally often on both sides. Coefficients are adjusted until the counts match.

How does the balancer find the answer?

It writes one conservation equation per element, solves the resulting homogeneous linear system exactly, then scales the solution to the smallest positive integers.

How do I write bracketed groups?

Just like on paper: Ca(OH)2, Mg3(PO4)2, Fe2(SO4)3 - including nested brackets if needed.

Why did my equation fail to balance?

Usually a typo - a wrong symbol or subscript makes the reaction physically impossible. The error message points at the formula causing trouble.

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