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

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

Calculate the concentration of all species in a 0.165 m solution of h2co3.

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?