Physical Reactions: cutting, folding, grinding, dissolving, meltingChemical Reactions: burning, exploding, rusting, corroding, cooking
Bubbles indicate either an increase in heat causing one of the reactants to boil or the production of a gas. Both of these are indications of a chemical reaction.
Precipitation forms Production of bubbles Temperature change Color change
yes
1. Color Change 2. Property Change 3. Temperature Change 4. Gas Formation 5. Solid Formation