A 100. 0 ml sample of 0. 20 m hf is titrated with 0. 10 m koh. What is the ph of the solution after the addition of 300. 0 ml of koh? the ka of hf is 3. 5 10–4.

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:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

just did the assignment and the answer was #1 +2 n