1. Something must have reacted with the glowing splint to make the pop; therefore, that must be a chemical change.
2. This probably is a physical change. Probably there is no reaction. (I say probably because a change in color does, at times, denote a chemical change. For example, iron(III) ion plus thiocyanate ion produces a blood red color due to the formation of the iron thiocyanate complex ion.)
is this a chemical or physical change
1. a glowing splint placed in a test tube causes a loud pop
2. food coloring is added to cake icing to make it pink
1 answer
1 answer