Answer:
It is a chemical change ⇒ 1st answer
Explanation:
* Lets explain the statements to solve the problem
- A chemical change occurs when a new substance is formed through
 a chemical reaction 
- Ex: cooking an egg
- Change of reaction is the rate of reaction it can be decreases or
 increasing 
- A phase change is a change from one state to another without a 
 change in chemical composition
- Ex: Condensation: the substance changes from a gas to a liquid
- A physical change, such as a state change or dissolving, but does 
 not create a new substance
- Ex: Breaking a glass
* Lets solve the problem
- A piece of toast came out of the toaster very overcooked.
∵ It is like the cooking an egg
∴ It is a chemical change