Match it, I’m not sure which category they go in

Endothermic is something that needs heat added into it, while exoteric gives heat off

Explanation:

1. Endo(Melting ice)

2. Endo(heat enters the system)

3. Exothermic(making ice)

4. Endothermic( liquid to gas)

5. Exothermic(campfire)

6. exothermic(gas to a liquid)

7. Exothermic (the flame of a candle)

8. Exothermic (heat leaves the system)

9. I don’t know if photosynthesis is exo or endothermic

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.