Answer:
B: A big chunk of space rock
Explanation:
asteroids are basically known as minor planets.
whereas shooting star is some dust burning while entering earths atmosphere.
on the other hand comet is some icy material consisting of gases.
and meteor is a very very small rocky or metallic body.
Answer: NaCl; Sodium Chloride
Explanation:
A rock is obviously more dense than a crumpled piece of paper of the same size. A styrofoam cup is less dense than a ceramic cup.
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True, to convert from moles to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).
