Which of the following indicates a chemical change?

a. an exploding firecracker

b. a freezing ice cube

c. a wire conducting electricity

d. wood breaking into splinters

*** so i think the answer is A, because it explodes which is related to flammability right? but i'm not quite sure. Can u pls double check and explain? THANK you!!! :)

Question

Which of the following indicates a chemical change?

 a.      an exploding firecracker

    b.   a freezing ice cube

     c.  a wire conducting electricity

    d.   wood breaking into splinters

*** so i think the answer is A, because it explodes which is related to flammability right? but i'm not quite sure. Can u pls double check and explain? THANK you!!! :)

anonymous · Answer

Hi there! thanks for coming to help! :)

unklerhaukus · Answer

you are totally right , combustion is a chemical change

anonymous · Answer

so it's combustion that is related to the exploding firecracker?? SO my answer--A--is correct?? :)

ash2326 · Answer

b)
freezing ice cube= state change
c)
wire conducting electricity= no change in chemical composition, just drifting of electrons in an electric field
d) wood breaking= no chemical change, just physical change
a) a chemical reaction leading to release of heat and light

anonymous · Answer

so i am right?

ash2326 · Answer

Yeah, you're correct:)

anonymous · Answer

thank you!! :) ima give @UnkleRhaukus a medal but can you please also give @ash2326 a medal also??? :) thank you @UnkleRhaukus and @ash2326 :)

anonymous · Answer

or @PaxPolaris can you please give @ash2326 a medal for me? appreciate it!! :)