Why shaking a hand warmer increases
the rate of the reaction.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.