Its okay my friend. you dont need to over stress it.
Answer:
Isotopes of an element are atoms of the same element that have different number of neutrons.
Well, there is kinetic energy when the object is in motion. But it will stop eventually because that energy is converted into thermal energy, or heat.
higher temp=faster motion
lower temp=slowed motion
It obtains a neutral pH (7). The combination of a strong acid and a strong base results in a neutral pH. The pH of HCl is about 1, and the pH of NaOH is 14.