When ammonium chloride and water interact, less energy is released from breaking the bonds in the water and ammonium chloride than what is required to form the bonds of the new substance.
what is happening in the reaction?
an endothermic reaction is occurring.
an exothermic reaction is occurring.
energy is being released into the surroundings.
energy escapes as light into the surroundings.

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.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?