Why does an object in motion stay in motion unless acted on by an unbalanced force? a) because forces are what stop and start motion b) because balanced forces cannot exist in nature c) because motion is the inherent state of all matter d) because motion, once begun, continues to accelerate

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Why do cells appear different in distilled water than they do in 10% salt water?