Chemistry 0620 · IGCSE · Exothermic and endothermic reactions
Exothermic and endothermic reactions — practice question
This question concerns chemical reactions and the energy changes they produce.
(a)[1]
Tick one box that indicates a chemical change.
(b(i))[1]
State which experiment has the biggest temperature change.
(b(ii))[1]
State which experiment is the most endothermic.
(b(iii))[2]
Complete Fig. 6.1 by adding labels for the vertical axis, the reactants and the products.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “the second box from the top, marked decomposing vegetation” …