All of the following require breaking and forming chemical bonds except

(A)burning coal
(B)rusting iron
(C)evaporating water
(D)tarnishing silver

I think its c

Question

All of the following require breaking and forming chemical bonds except

 (A)burning coal
 (B)rusting iron
 (C)evaporating water
 (D)tarnishing silver

I think its c

anonymous · Answer

@Rushwr @Daniee_Bruhh @fluttershyK

fluttershyk · Answer

yeah I think your right

rushwr · Answer

That's right because
during burning of coal u release nitrogen oxides, sulfur dioxide, particulate matter (PM), mercury, and dozens of other substances. So that indeed is a chemical reaction.
Rusting of iron is the formation of Fe2O3 that is also a chemical reaction.
Tarnishing of silver means it has produced Ag2S so that is also a chemcial reaction.

rushwr · Answer

Well so evaporation of water means it goes from liquid state to the vapour. So that is a physical change. You're correct

anonymous · Answer

Can u help with a couple more ? @Rushwr

rushwr · Answer

Open up new ones for those :)

rushwr · Answer

@Photon336  why are you here ^_^ LOL