QUARTER 1 EXAM REVIEW
Chapter 1 – The Nature of Science
Hypothesis
inference
property
dependent variable




model
constant
technology
observation
theory
standard
independent variable
precision
accuracy
SI system
Know the SI units for length, mass, temperature, volume, density, time.
Be able to do metric conversions and temperature conversions.
Be able to do density problems.
Be able make a graph and answer questions from the graph.
Chapter 14– States of Matter
 Know the 3 gas laws, their name, equation, what variable is constant and the
relationship b/w the variables in the equation.
 Know the 3 states of matter and their characteristics.
 Know the names for the changes of state and what happens during each change
(evaporation, condensation, melting, freezing, sublimation, deposition).
 Which changes of state are endothermic? Which changes of state are exothermic?
 What are the units of pressure?
 What is meant by heat of fusion? Heat of vaporization? Thermal expansion?
 Be able to work some problems involving the gas laws and identify the law you
are using to do the problem.
 A container that has a volume of 4.5 L contains oxygen that has a pressure of 715 mm Hg
at a temperature of 21oC. The oxygen is put into a container that has a volume of 3.6 L.
If the temperature does not change, what will be the new pressure of the gas? What gas
law is this?
 REMEMBER: The unit on temperature MUST always be _______________ to
work the problem.
 Identify the changes of state on the diagram below. Identify whether each process is
endothermic or exothermic. Place your answers in the chart below.
SOLID
A
D
F
C
E
LIQUID
GAS
B
Change of State
Endothermic or Exothermic
A
B
C
D
E
F
Chapter 15 – Classification of Matter
 Be able to classify matter as an element, compound, heterogeneous mixture,
homogeneous mixture, solution, colloid, or suspension.
 Be able to classify properties as either chemical properties or as physical
properties.
 Be able to classify changes as chemical changes or physical changes.
 Know the name, atomic number, and symbol for elements 1 – 20.
 What is the Tyndall effect? How can it be used to distinguish b/w solutions,
colloids, and suspensions?
 On this chapter test, you had a set of 5 diagrams and you had to tell whether the
models represented a pure element, a pure compound, a mixture of 2 elements, a
mixture of 2 compounds, or a mixture of an element and a compound. This is on
the final exam.
Chapter 16 - Atomic Structure and the Periodic Table
TERMS:
atom
element
proton
neutron
metal
transition element
nucleus
electron cloud
atomic number
mass number
nonmetal
periodic table
groups
families
periods
metalloid
electron
isotopes
noble gas
halogen
atomic mass
 In a neutral atom, the number of ___________ is equal to the number of
__________.
 Be able to name the 3 particles of an atom, give their location, their charge, and
their symbol.
 What determines the identity of an element?
 One of the isotopes of copper has a mass of 64.927 amu and all copper atoms
have 29 protons. Write the nuclear symbol notation and the hyphen notation for
this isotope of copper.
 What is the relationship between an element’s group/period to the number of E
levels in the atom and the number of valence electrons?
 Be able to fill in a chart like the one below WITHOUT a periodic table:
NAME
SYMBOL
ATOMIC
#
B
5
Neon
MASS
#
20
11
PROTONS
NEUTRONS
13
14
ELECTRONS
PRACTICE PROBLEMS
1. What is the density of a sample of material that has a mass of 34.7 g and has a
volume of 5.6 cm3? Show all 4 steps.
2.
A sample of hydrogen has a volume of 3.4 L when the temperature is 21oC. The
volume is reduced to 2.8 L. What is the new Celsius temperature?
3.
A sample of oxygen has a pressure of 715 mmHg when the temperature is 21oC.
What is the new pressure when the temperature is increased to 27 oC?
4.
Draw an atomic model of chlorine which has an atomic number of 17 and a mass
35.453 amu.
5.
Write the nuclear symbol notation, hyphen notation, and electron dot diagram
for the element in the previous question.
6.
Identify the number of protons, neutrons, and electrons in each of the following:
17
8
Boron-11
O
7. Metric conversions
B. Convert 6.7 dL to cm3
A. Convert 35.6 km to cm
8.
Convert each of the following temperatures to the other 2 scales:
A. 17 o F
9.
B. -8 o C
C. 302 K
Joe & Susie conducted an experiment to find the density of a certain substance.
They measured the volume of different masses of the substance. The data they
collected is shown below.
Mass (g)
12
15
22
29
35
Volume (mL)
4.1
5.2
7.6
10.0
12.0
A. What is the independent variable?
B. What is the dependent variable?
C. Make a graph of the data. Look at the next 2 questions to see how far you
need to extend your scales on the x and y axes.
D. What is the volume of 25 g of the substance? Place an X on the graph to show
this volume AND give the value here.
E. What mass of the material would have a volume of 2.5 mL? Place an X on
the graph to show this mass AND give the value here.
NOTE: THIS IS A REVIEW SHEET ONLY, AND ANYTHING COVERED THIS
QUARTER COULD BE ON THE QUARTER 1 ASSESSMENT. YOU SHOULD BE
STUDYING THE CHAPTERS IN THE TEXTBOOK, YOUR NOTES, AND
WORKSHEETS WE HAVE DONE TO HELP YOU PREPARE FOR THIS TEST.
Hypothesis
inference
property
dependent variable
decikilogram
ten
electrons
atom
atomic number
noble gas
neutron
atomic mass
Period 5
Second
model
technology
theory
independent variable
milli kelvin
hundred
atomic number
periodic table
groups
mass number
periods
transition element
Period 15
constant
law
precision
observation
accuracy
standard
SI system
kilocentiminute
gram
Celsius
farhrenheit
nucleus
electron cloud
mass number
element
electron
proton
isotopes
families
halogen
nonmetal
metal
metalloid
Group 15
Group 5
scientific method
experiment
two electrons
two neutrons