At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react. If Mona is filling a balloon with helium and she adds more gas to it, what happens to the likelihood that the helium particles will collide with each other more likely or less likely?
more likely

(Question)
The smaller its mass is, the greater its acceleration for a given amount of force. If Milo is racing cars on a track and one car has more mass then another, what does that tell him about the larger cars acceleration potential compared to the smaller car it's higher or it's lower?
(Answer)
it's lower

Ques: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher. If Mary is building a rocket and she wants it to fly as low as possible, what should she do to the mass of the rocket increase it or decrease it?
Ans: increase it

(Q).
To reduce friction, oil is added to the engine. Jeff should add oil or gas to his engine to reduce the friction in its processes?
(A).
oil

Ques:Bases have pH values above 7. The higher the pH value, the more strongly basic the substance. Christy is in lab measuring the pH values of some substances. The first substance she measures has a pH value of 8. The second substance has a pH value of 9. Compared to the first, the second substance can be said to be less. or more basic?

Ans:more

Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains. The oxygen levels in water wind up going down when the temperature increases or decreases?
increases