Question

Is spoiling milk a chemical change or a physical change? Given reason.

Answer 1

Answer:

Explanation:

Chemical change requires a change on the molecular level so that it cannot be reversed because they form some new substance. Souring of milk is a reverse process and it produces new molecules. Another example of chemical change - Creation of new gas, bubbles, or changes in color like a formation of rust.

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Answer 2

Explanation:

ITS A CHEMICAL CHANGE BECAUSE

Chemical change requires a change on the molecular level so that it cannot be reversed because they form some new substance. Souring of milk is a reverse process and it produces new molecules. Another example of chemical change - Creation of new gas, bubbles, or changes in color like a formation of rust.