Question

What is striking a match an example of?

providing activation energy to a physical reaction

an endothermic reaction

providing activation energy to a chemical reaction

an endothermic process

Answer 1

So would you say that lighting a match is endothermic or exothermic?

This will eliminate two answer choices

And is lighting a match a physical change or a chemical change?

Do you know what endothermic/exothermic and physical/chemical changes are?

Answer 2

Chemical changes in my book are man-made objects or processes.

Answer 3

And I think endothermic is absorbing energy?

Answer 4

Uhhh that's the textbook definition?

Answer 5

Oh no I just meant to me that's how I summarize it.

Answer 6

Okay phew because I was about to say LOL

So like let me explain the difference between them

The classic example that's used is wood
You can take a tree and cut it up
As long as you have the branches, those are all physical changes. No matter what shape you make out of the wood- it still remains wood.

If you burn it, then that is a chemical reaction. You've altered the identity of wood to something else, like heat and ashes

Answer 7

And you're right about endothermic absorbing heat. Exothermic releases heat

So would that make lighting a match, endothermic or exothermic?

Answer 8

If you're lighting a match that'd be endothermic right? But then again, a lit match absorbs energy?

Answer 9

No no, it's releasing heat and energy when you light it up

Answer 10

So it would have to be exothermic

Answer 11

Yeah that's what I meant. I was thinking a bit too hard on it.

Answer 12

Providing activation to a chemical process.

Answer 13

Bingo!!