Energy Transfer During Exothermic And Endothermic Reactions (GCSE Chemistry)

In a simple calorimetry experiment dissolving a salt, doubling the mass of salt added (with excess solvent) tends to produce which effect on the measured temperature change, assuming the reaction remains the same per gram?

Which of these processes is endothermic?

Which experimental change would decrease the measured temperature change for an exothermic dissolution in a simple cup calorimeter?

Which statement correctly describes an exothermic chemical reaction?

When ammonium nitrate dissolves in water the solution temperature falls. This process is therefore called:

Which description best fits an enthalpy profile of an exothermic reaction?

Which of the following best explains why some reactions are slow even though they are exothermic?

When hydrochloric acid neutralises sodium hydroxide, the reaction is exothermic. Which would you expect to measure during a titration if mixing volumes are larger but same concentrations?

Which method gives the best reduction in experimental heat loss when measuring temperature change of a solution?

Which experimental observation best shows a reaction is exothermic?

Which statement about endothermic and exothermic reaction profiles is correct?