When hydrogen peroxide bubbles, it is undergoing a chemical change. Which statement best describes what is happening? a)The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.
b)The atoms in hydrogen peroxide are breaking apart and recombining into the original molecules.
c)The molecules of hydrogen peroxide remain intact as new types of molecules form and move out of the liquid.
d)The molecules of hydrogen peroxide remain intact but move more quickly to allow evaporation.

Energy is the ability to do work which measures what

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume