Question 1
F63%Figure shows the particles present before and after hydrogen reacts with chlorine.
Figure: Particle diagrams of the substances present before and after hydrogen reacts with chlorine
a.[2]
Use Figure to explain how the diagrams show that mass is conserved in this reaction.
b.[1]
Write the balanced symbol equation for the reaction shown in Figure.
3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations Questions
40 exam-style questions on AQA GCSE Chemistry 3.1 Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations, covering 3.1.1 Conservation of mass and balanced chemical equations, 3.1.2 Relative formula mass, 3.1.3 Mass changes when a reactant or product is a gas, and 3.1.4 Chemical measurements. Each one has a worked solution and a mark scheme showing where the marks go.