Which experiment would you perform to determine if the total momentum is conserved in a collision? Collide two objects of known masses, and measure the velocity of one object before the collision and the other object after the collision.
Drop two objects from the same height and measure how long it takes them to reach the ground.
Apply the same amount of force to two objects of different mass, and compare the change in their velocities.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?