Answer:
They show the elements that make up a compound.
They show the three-dimensional shape of a molecule.
They show the types of atoms that make up a molecule.
They show the number of each type of atom in a molecule.
Explanation:
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<span>Acceleration = (change of speed) / (time for the change)
Change in speed = (30 - 0) = 30 m/s.
Time for the change = 8 sec.
Acceleration = 30/8 = 3.75 m/s per second.
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