In science, a model is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Models are central to what scientists do, both in their research as well as when communicating their explanations.
So your answer would be
C) Models help scientists visualize things they can’t see.
Ca + Cl2 = CaCl₂
A synthesis <span>reaction.</span>
Mass = moles x molar mass
Molar mass of eythl alcohol = 46
Mass= 0.21 x 46= 9.66g
