Chemistry Homework Help?

Question

1. One Chemical property of matter is:
a) boiling point; b) texture; c) reactivity; d) density
2. A line spectrum is produced when an electron moves from one energy level:
a) To a higher engery level; b) to a lower energy level; c) into the nucleus; d) into another position in the same sublevel
3. In a molecule of fluorine, the two shared electrons give each fluorine atom _________ electron(s) in the outer energy level.
a) 1; b) 2; c) 8; d) 32
4. When potassium reacts with water, one product formed is:
a) hydrogen gas; b) oxygen gas; c) potassium oxide; d) salt

Thank you for whoever helps.

Answer 1

1 = c
2 = b
3 = c
4 = a

Answer 2

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Answer 3

1. c) reactivity
2. c) To a lower energy level
3. c) 8
4. a) Hydrogen gas