The Law of Conservation of Mass states that mass can be created or destroyed.

Question

True
False

Match the following changes indicating it as Physical or Chemical change.

The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.
a.
Chemical

b.
Physical

1.
Rotting of banana

2.
Mixing of salt and pepper

An unexpected color change or release of odor also often indicates a chemical change.

True
False

Answer 1

1. Rotting of banana - a. Chemical

2. Mixing of salt and pepper - b. Physical

Regarding the statement:

"An unexpected color change or release of odor also often indicates a chemical change."

True