If the substance in the diagram was heated to "t2," what is happening if the substance is allowed to approach t1? select all that apply. the average kinetic energy is decreasing. the average kinetic energy has increased. the highest energy level has decreased. fewer molecules would have a lower energy level. more molecules have a higher energy level.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;