A model is simplified version of a more complex idea or system. It useful to help us understand something we can't actually see A) true

B) false

I feel like the answer is A) true

Explanation:

you create a model to help your audience understand your complex idea. There have been models made to represent ideas that we cannot see.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

sry but any answer choices