What are properties ? A. something that is different.

B. something you aren't able to see.

C. something you can observe about matter.

D. the same for all atoms.

a

Explanation:

In logic and philosophy, a property is a characteristic of an object; a red object is said to have the property of redness. The property may be considered a form of object in its own right, able to possess other properties.

3 hours because it is a decent distance.

2b2t

explanation:

2b2t