What information does an energy diagram give?
Energy
Reactants
Products
Reaction Progress
A. It shows how concentrations of reactants affect the energy.
O
B. It shows the transfer of potential energy to kinetic energy.
O
O
c. It shows the rate of the reaction as a function of time.
O
D. It shows the energy requirements needed in order for a reaction to
occur.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.