How to balance equations?

Balancing equations is making sure that all atoms, ions and charges have the same count on both sides of the equation. We start with checking metals, hydrogen and lastly oxygen and charges. In order to balance the count we put coefficients before the give species.

Related Chemistry A Level answers

All answers ▸

Explain, in general, how a catalyst works


A solution of ethanoic acid in water has a concentration of 3 g/dm^3. Given that the pKa of ethanoic acid is 4.76, calculate the pH of this solution.


State the meaning of the term first ionisation energy


Write a half-equation for the overall oxidation of ethanol into ethanoic acid.