Answer:
molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled.
Explanation:
Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Answer:
Galileo believed that a projectile is a combination of uniform motion in the horizontal direction and uniformly accelerated motion in the vertical direction. If it is not impeded, it will continue to move even without an applied force
Answer:
High glucose concentrations prevent the transport of lactose into the cell.
Explanation:
Answer:
D. It predicts whether or not a reaction will be spontaneous.
Explanation:
<em>What does Gibbs free energy (ΔG) predict?
.</em>
A. It predicts what the rate of the reaction will be. NO. ΔG is a thermodynamical parameter and it is not related to the kinetics of the reaction.
B. It predicts how high the activation energy is. NO. ΔG is a thermodynamical parameter and it is not related to the kinetics of the reaction.
C. It predicts if entropy will increase or decrease. NO. ΔG depends on the entropy but not the other way around.
D. It predicts whether or not a reaction will be spontaneous. YES. If ΔG < 0 the reaction is spontaneous and if ΔG > 0 the reaction is not spontaneous.