Name_____________________________________________
I.
Block_________________
Use each of the following terms just once to complete the passage: extensive, chemical, mass, density,
properties, physical, substance, intensive
Matter is anything with -(1)- and volume. A -(2)- is a form of matter with a uniform
and unchanging composition. Substances have specific, unchanging -(3)- that can
be observed. Substances have both physical and chemical properties. -(4)properties can be observed without changing a substance's chemical composition.
Color, hardness, and -(5)- are examples. -(6)- properties do not depend upon the
amount of substance present while -(7)- properties do depend upon the amount of
substance present.. Other properties cannot be observed without changing the
composition of a substance. These are called -(8)- properties. An example is the
tendency of iron to form rust when exposed to air.
(1)__________________________
(2)__________________________
(3)__________________________
(4)__________________________
(5)__________________________
(6)__________________________
(7)__________________________
(8)__________________________
II. Label each property as either physical or chemical.
Chemical formula, H2O
(9)__________________________
Forms green carbonate when exposed to moist air
(10)__________________________
Remains unchanged when in the presence of nitrogen
(11)__________________________
Colorless
(12)__________________________
Solid at normal temperatures and pressures
(13)__________________________
Ability to combine with another substance
(14)__________________________
Melting point
(15)__________________________
Liquid at normal temperatures and pressures
(16)__________________________
Boiling point is 100°C
(17)__________________________
Conducts electricity
(18)__________________________
Density is 1 g/cm 3
(19)__________________________
III. Describe each of the following changes as chemical or physical.
boil
(20)__________________________
burn
(21)__________________________
condense
(22)__________________________
corrode – disintegration of material into its atoms
(23)__________________________
crumple
(24)__________________________
ferment - convert sugar to carbon dioxide and alcohol
(25)__________________________
melt
(26)__________________________
rust
(27)__________________________
crush
(28)__________________________
freeze
(29)__________________________
oxidize – react with oxygen
(30)__________________________
tarnish – metal reacts with air
(31)__________________________
explode
(32)__________________________
grind
(33)__________________________
rot
(34)__________________________
vaporize
(35)__________________________
IV. Write the letter of the correct term for each definition in the blank..
A. filtration
B. distillation
C. crystallization
D.chromatography
Separates substances on the basis of the boiling points of the substances.
(36)_______
Separates substances based on their movement through a stationary phase.
(37)_______
Separates solids from liquids by using a porous barrier.
(38)_______
Separates solids from liquids by saturating the solution with the dissolved substance.
(39)_______
V. Write the letter of the correct choice that best completes the statement or answers the question.
A substance that cannot be separated into simpler substances by physical or chemical means is a(n)
A. compound
B. mixture
C. element
(40)_______
A chemical combination of two or more different elements is a(n)
A. compound
B. solution
C. element
(41)_______
Which of the following is an example of an element
A. water
B. air
C. sugar
D. oxygen
(42)_______
Which of the following is an example of a compund?
A. gold
B. silver
C. aspirin
D. copper
(43)_______
VI. Label each substance as either an element or a compound:
silicon
(44)__________________________
sodium chloride
(45)__________________________
francium
(46)__________________________
nickel
(47)__________________________
ice
(48)__________________________
oxygen
(49)__________________________
baking soda (sodium hydrogen carbonate)
(50)__________________________
VII. Find the percent composition of the following compounds. Show your work.
CuBr2
%Cu _____________
% Br______________
H2 O 2
% H _____________
% O______________
NaOH
% Na ____________
% H _____________
% O______________
FeCl3
% Fe _____________
% Cl______________