IB skill practice

Balance equations and use mole ratios

Paper 1, Paper 2 5 marks Difficulty 3

Balance simple equation coefficients

A skeleton reaction in a antacid titration lesson requires coefficient \(2\) before reactant A and \(2\) before reactant B. Calculate the total reactant coefficient count. Enter the answer and choose the interpretation that matches the chemistry.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.