If drawn to full-sized scale, the scale of something that is halved is 1/2" = 1 "
1/4
34.5 or 34 1/2
2,000
45 cannot be halved by 10.
Kinetic energy will also be halved. Because kinetic energy is equal to 1/2 mv2
Multiply by (1/2) = 0.5, or divide by 2.
Kinetic energy is determined by mass and velocity. The velocity is halved if you double the original mass, so the kinetic energy stays the same (unless the mass added has the same kinetic energy in the observer's reference frame as the original mass).
Since the reaction is first order with respect to H2, if the concentration of H2 were halved, the rate of the reaction would be halved. This can be seen by entering one for each value in the rate equation, then changing the value of [H2] to 1/2 while keeping the other values the same: The rate changes from 1 to 1/2.
(1/2) x (1/4) = 1/8, you multiply the bottom numbers (denominators) to find the answer.
4 is an even number and halved it is 2, which is an even number, so the short answer to the question is no. 8 halved is 4. 12 halved is 6. 16 halved is 8...
I should have stated that the jug appeared halved internaly.