Cambridge Secondary (7-9). Stage 8. MCE Science. Student Book - Unit 7: Exothermic and Endothermic Changes - Question 77

Ahmed added some dilute hydrochloric acid to a solution of sodium hydroxide. He measured the temperature of the sodium hydroxide solution before and after mixing. He observed that heat was given out.

Tick (✓) the row that best describes the type of reaction and the temperature change in the above reaction.