give an example of a substance undergoing a chemical change and explain why the substance cannot return to its original state
help please, thanks :)

Question

give an example of a substance undergoing a chemical change and explain why the substance cannot return to its original state
help please, thanks :)

anonymous · Answer

Well, one easy example would be a cube of ice placed on a hot stove.

anonymous · Answer

The heat will make the ice melt; changing it from solid state (ice) to a liquid state (water).

anonymous · Answer

i have that already
the teacher said don't use the lab

anonymous · Answer

the lab paper

anonymous · Answer

UGG! :p The lab paper?! What's that& ayye that was like the easiest example ever though

anonymous · Answer

i know the teacher took it as an example

anonymous · Answer

>.< Ugg! otay otay...

anonymous · Answer

do u think a match that is lit is a chemical change

anonymous · Answer

Well...yes!!! When you rub the match stick on that box it becomes a flame

anonymous · Answer

thank you for helping bye:)..

anonymous · Answer

Your welcome :j