RP 4- temperature changes

Question 1

what is an exothermic reaction ?

Answer 1

energy released to the surroundings- increasing the surrounding temperature

Question 2

what is an endothermic reaction ?

Answer 2

energy taken in from the surroundings- surrounding temperature get colder

Question 3

what happens to the temperature when you add more sodium hydroxide into the hydrochloric acid ?

Answer 3

the temperature increases until it reaches the maximum and then it starts to decrease as there is not enough HCL acid to react

Question 4

what do you use to stop heat from escaping ?

Answer 4

use a polystyrene cup