Alright, so mass is a property of a physical body. During physical changes, such as acceleration, force, etc, the mass stays the same since we are not affecting its physical shape, just where it is physics wise. So yeah mass is conserved during a physical change.

(This is very confusing I'm bad at explaining things sorry)

5 0

3 years ago

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Which describes the basic structure of a fatty acid?

Alexeev081 [22]

Answer:
The correct option is <span>a long carbon and hydrogen chain and a carboxyl group.

Reason:
Fatty acid is basically consists of two main parts:
a hydrocarbon tail connected with carboxylic group as shown in the figure.</span>

5 0

3 years ago

Materials must pass through a cells semi-permeable membrane in order for energy to be utilized. This process is called

trapecia [35]

2 bec you know easygoing ahahah

4 0

3 years ago