40 POINTS PLEASE HELP
Classify each one of these examples as a physical or chemical change. Give a reason (observation) of why each example is a specific type of change.
Question:
a. The teacher puts a sugar cube into a container of warm water. Eventually the sugar cube is no longer visible. What type of change is this and why?(2 points)
b. The teacher puts vinegar into a small container of baking soda. The combined substances begins to fizz and bubble. What type of change is this and why? (2 points)
