If you could look inside the sun today, you’d find that its core contains a much higher proportion of helium and a lower proportion of hydrogen than it did when the sun was first born.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;