The following data was obtained from three bottles A, B and C suspected to contain a fruit juice, vinegar and ammonium hydroxide. Which of the bottles contained a fruit juice, ammonium hydroxide, vinegar?

a)

i) A fruit juice: B

ii) Ammonium hydroxide: A

iii) Vinegar: C

b)

i) Type of reaction: Neutralization

ii) To determine if the reaction is exothermic or endothermic, you would:

1. Measure the initial temperature of both solutions A and C.
2. Mix the solutions in a suitable container (e.g., a beaker) and measure the temperature of the mixture immediately after mixing.
3. If the temperature of the mixture increases, the reaction is exothermic. If the temperature decreases, the reaction is endothermic.