If bubbles aren't a for sure way of knowing a chemical reaction I don't know what is. But being for real, it is a chemical change because the bubbles are releasing carbon dioxide meaning it turned into a product from a reaction with outside forces.
Answer:
You will form a solution
Explanation:
The sugar is added into the water, then the sugar will dissolve into the water.
1. Cylinder
2. Sphere
3. Rectangular prism
4. Cone
Hope this can help.
Answer: 3.338832 kilojoules