5 What effect does gravity have on stars?
Aalows stars to break free of their gatantes
B heps break hevdam atoms apart trekte of stars
С
It forms stars from clouds of gas and dust, and causes
them to ignite
D
it causes stars to swell from white dwarts to red glants

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.

gravity causes stares to cluster i think so

c is the answer because when something is left after something evaporates that shows the chemical change.

thats how its supposed to be