Question

What is true about the energy involved in a chemical reaction?

The amount of energy is constant, but it is converted from one form to another.

The amount of energy decreases as it is converted from one form to another.

The amount of energy increases as it is converted from one form to another.

The amount of energy may increase or decrease depending on the type of reaction.

Answer 1

@Frostbite

Answer 2

Same principal as before :)

Answer 3

Conservation of energy.

Answer 4

NOT D

Answer 5

If we talk about ALL energy in ALL forms in a closed system, then it is not D yes

Answer 6

A

Answer 7

I would say so yes.

Some molecules do release high amounts of energy. For an example the reaction ATP + H2O -> ADP + Pi release a high amount of energy, but it other molecules does not use this energy, it is released as heat (Q, which is waist energy). But it can also go the other way ADP + Pi -> ATP + H2O which require energy. But again... the full amount of energy is constant it is just transferred from one element to another.
So in some way it could be D, but I hardly think it is what they are looking for.

Answer 8

but if other molecules*

Answer 9

the best answer would be A ?

Answer 10

Yes, but I just wanted you to understand that before, because usually when we (when I say we I mean me and many other (bio)chemist) say "energy" we usually mean "potential energy" or "free energy"

Answer 11

And the potential energy can decrease or increase.

Answer 12

But let that be another story for another question ;)

Answer 13

lol ok thank you!

Answer 14

You're more than welcome.