Which particles are very far apart from each other, are constantly moving, and have no definite shape or volume?
A. Solids
B. Liquids
C. Gases
D. Water

C. Gases

Explanation:

A gas is matter that has no definite shape or volume. The particles are far apart and move freely. In a gas, particles move much faster and the attractive forces are weaker than the attractive forces in a liquid and a solid.

a basic solution is an aqueous solution containing more oh-ions than h+ions. in other words, it is an aqueous solution with a ph greater than 7. basic solutions contain ions, conduct electricity, turn red litmus paper blue, and feel slippery to the touch.

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.