Download 2011-2012 ACAD REVIEW SHEET Chapter 2

Name:
Date:
Mod:
ACADEMIC REVIEW SHEET Chapter 2 Energy and Matter
Note. This review sheet does not include everything in the chapter or everything that will be on the test. It
does highlight important topics and problems.
1. Define each term in a complete sentence.
energy
solid
kinetic energy
liquid
potential energy
gas
joule
physical property
law of conservation of energy
chemical property
Kelvin scale
physical change
absolute zero
chemical change
matter
law of conservation of matter
element
compound
pure substance
mixture
heterogeneous mixture
homogeneous mixture
2.
Convert each of the following amounts of energy as indicated. Show all your work.
a. 123 Cal = __________Joules
b. 0.456 kilocalories = __________kJ
3.
Convert the following temperature as indicated. Show all your work.
a. 234 K = _________C
b. 456 C = __________K
4.
Identify the following as physical changes or chemical changes or neither.
a. boiling water
j. reacts with a base to form
b. cutting iron
water
c. digestion of food
k. reacts with water to form a gas
d. exploding of dynamite
l. ripping paper
e. flammability of hydrogen
m. rising of bread dough
f. freezing water
n. rusting of iron
g. melting iron
o. sharpening a pencil
h. molding of cheese
p. shattering a light bulb
i. reaction of chlorine with
q. smashing your car
sodium
r. souring milk
s. wood rotting
5.
What is the relationship between the kinetic energy of molecules and their physical state?
6.
Identify the following material either as an element, compound or mixture.
a. arsenic
b. carbon monoxide
c. granite
d. table salt
e. tungsten
f. vegetable soup
7.
Describe the basics of how filtration and distillation work.
Name:
Date:
Mod:
ACADEMIC REVIEW SHEET Chapter 2 Energy and Matter
Note. This review sheet does not include everything in the chapter or everything that will be on the test. It
does highlight important topics and problems.
1. Define each term in a complete sentence.
energy
solid
kinetic energy
liquid
potential energy
gas
joule
physical property
law of conservation of energy
chemical property
Kelvin scale
physical change
absolute zero
chemical change
matter
law of conservation of matter
element
compound
pure substance
mixture
heterogeneous mixture
homogeneous mixture
2.
Convert each of the following amounts of energy as indicated. Show all your work.
a. 123 Cal = __________Joules
(ANS: 5.15 x 10 5 Joules)
b. 0.456 kilocalories = __________kJ
(ANS: 1.91 kJ)
3.
Convert the following temperature as indicated. Show all your work.
a. 234 K = _________C
(ANS: 39 C)
b. 456 C = __________K
(ANS: 729 K)
4.
Identify the following as physical changes or chemical changes or neither.
a. boiling water
(ANS: physical)
b. cutting iron
(ANS: physical)
c. digestion of food
(ANS: chemical)
d. exploding of dynamite
(ANS: chemical)
e. flammability of hydrogen
(ANS: chemical)
f. freezing water
(ANS: physical)
g. melting iron
(ANS: physical)
h. molding of cheese
(ANS: chemical)
i. reaction of chlorine with sodium (ANS: chemical)
j. reacts with a base to form water
(ANS: chemical)
k. reacts with water to form a gas
(ANS: chemical)
l. ripping paper
(ANS: physical)
m. rising of bread dough
(ANS: chemical)
n. rusting of iron
(ANS: chemical)
o. sharpening a pencil
(ANS: physical)
p. shattering a light bulb
(ANS: physical)
q. smashing your car
(ANS: physical)
r. souring milk
(ANS: chemical)
s. wood rotting
(ANS: chemical)
5.
What is the relationship between the kinetic energy of molecules and their physical state?
(ANS: Gases have the greatest amount of kinetic energy; solids have the least.)
6.
Identify the following material either as an element, compound or mixture.
a.
b.
c.
d.
e.
f.
7.
arsenic
carbon monoxide
granite
table salt
tungsten
vegetable soup
(ANS: element)
(ANS: compound)
(ANS: mixture)
(ANS: compound)
(ANS: element)
(ANS: mixture)
Describe the basics of how filtration and distillation work.
(ANS: both the filtration apparatus and the distillation apparatus is shown in Figure 2-23 on page
78. An important part to include in filtration is that it separates by particle size and with respect to
distillation is that it separates by boiling point differences.)