This lab question is: How can you distinguish a physical change from a chemical change? Which statements below are an appropriate hypothesis in response to this question? Check all that apply.

Chemical changes predominately follow the 5 rules such as odor, color change, temperature change, formation of precipitate, and formation of gas (bubbles)

physical changes can most of the time be directly observed such as temperature or state of matter.

Chemical changes into a new substance and physical changes. Are reversable.