Equation balancer
Balance any reaction and get molar masses from the periodic table.
What the Equation balancer does
Type a reaction and it balances it exactly, not by trial and error. Pick elements from the table to get molar masses, or combine them and ask what the compound is.
Type a reaction and it balances it exactly, by solving the conservation equations rather than by trial and error. Search the periodic table, pick an element to get its molar mass, or tick several, combine them, and get the mass and percent composition of the compound.
It is the tool for the stoichiometry homework where every later step depends on a balanced equation and a correct molar mass. Get those two right here, then take the rest into the chat.
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More about the Equation balancer
The balancer handles the reactions in a high-school and first-year course, including the ones with several products where guessing coefficients takes ten minutes. If an equation cannot be balanced as written, it tells you rather than inventing coefficients.
Chat about this sends the balanced equation or the compound into the conversation. Ask which reactant is limiting, how many grams that makes, or why the coefficients came out as they did.
Why ours is better
Right by construction.
A balanced equation here is the solution to a set of equations, and a molar mass is a sum from the table. Neither is something a model recalled, so neither can be recalled wrong.
The table is a tool, not a poster.
Search it, tick elements, and combine them. The percent composition comes with the mass, because that is the next question on the sheet.
It connects to the working.
The number is the start. The reasoning, the limiting reagent, the yield, the units: all one click away in the same conversation.
How it was built
All the chemistry here is arithmetic done locally: linear algebra for the balancer, sums over the periodic table for masses. That was a deliberate choice, because a model asked to balance an equation will sometimes produce something plausible and wrong, and a student cannot tell the difference.
It costs nothing to run however many people use it, so it is open to everyone without an account, and nothing you type leaves your browser unless you send it into the chat.
Keep what you work on
A free account keeps your questions together by class, remembers what you have covered, and gives you a weekly allowance rather than a daily one.