In a chemical reaction you cannot create or destroy matter, this statement refers to
a.
conservation of atoms
c.
conservation of mass
b.
conservation of matter
d.
conservation of motion

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.