John was able to move a small plastic ball by blowing on it. How does this show that matter is made up of particles? (2 points) a
The air coming out of John's mouth fills up the plastic ball.

b
The air particles change the shape and size of the plastic ball.

c
The ball is made up of particles that move and cause the ball to move.

d
The particles of air coming out of John's mouth pushed the ball.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What is the percentage of hydrogen in c2h4