Chemistry Reference
In-Depth Information
_____ 1.
A type of reaction that releases energy.
_____ 2.
A change that results in the production of a new substance.
_____ 3.
Two or more substances chemically combined.
_____ 4.
A substance that is dissolved in water.
_____ 5.
A force exerted over a distance.
_____ 6.
A substance made up of only one type of atom.
_____ 7.
A property that depends on the size of the sample.
_____ 8.
A compound that is made up of three elements.
_____ 9.
Anything that is made up of atoms.
_____ 10. The energy of matter in motion.
Part II—Multiple Choice
For each of the following questions, select the best answer.
11. Which of the following represents a homogeneous mixture?
a) CuCl
2(s)
b) Hg
(l)
c) CO
2(g)
d) C
6
H
12
O
6(aq)
12. Which of the following can be broken down by a chemical change?
a) hydrogen c) lithium
b) carbon dioxide d) bromine
13. Which of the following change-of-state operations is exothermic?
a) gas to liquid c) liquid to gas
b) solid to liquid d) solid to gas
14. Which of the following is not an element?
a) gold
b) bronze
c) copper
d) iron
15. Which of the following is a diatomic element?
a) neon b) iodine c) barium d) calcium
16. Which of the following does not represent a compound?
a) H
2
O
b) He
c) CO
d) KI
17. Which of the following elements is malleable?
a) copper
b) hydrogen
c) neon
d) iodine
