Main Grid
1/17/12
•
•
•
•
No Drill
Any questions re: Midterm Review #2?
Can keep review sheet until tomorrow.
Check your folders for 1st midterm
review and other work.
Main Grid
Chemistry Midterm Review
Day #7
Topics Covered
•
•
•
•
•
•
•
•
Chapter 1 (Measurements)
Chapter 2 (Energy & Matter)
Chapter 3 (Atomic Structure)
Chapter 4 (Electron Configurations)
Chapter 5 (The Periodic Table)
Chapter 6 (Groups of Elements)
Chapter 7 (Chemical Bonding/Formulas)
Chapter 8 (Shapes of Molecules)
Main Grid
Objectives
• For a complete listing of Midterm
objectives, see the Midterm County
Assessment Teacher’s Guide.
Main Grid
Agenda
• Review Game
2
Main Grid
4 Categories (7 ques. ea.)
•
•
•
•
Scientific Investigation
Chemical Formulas
Atomic Structure and Periodicity
Misc.
Main Grid
Game Groups
•
•
•
•
•
Count off 1 - 7. Remember your number!
The 1st group of 7 = Group 1
The 2nd group of 7 = Group 2
The 3rd group of 7 = Group 3
The 4th group of 7 = Group 4
Get in your groups and get ready to play
Main Grid
Game Rules
• Rotate through group starting with 1
• Not allowed to help your group member
• Can use periodic table, ion sheet,
electronegativity sheet and calculator
Main Grid
Scientific Investigation
Which of the following is a chemical change?
A – melting wax
B – boiling water
C – painting black
D – burning wood
Main Grid
Scientific Investigation
•
•
•
•
•
Which of these is not an SI base unit?
A - Kg
B-s
C-L
D-K
Main Grid
Scientific Investigation
• What is the name of
the lab equipment
shown?
• A - Watch glass
• B - Crucible
• C - Beaker
• D - Evaporating dish
Main Grid
Scientific Investigation
Which of the following is a
homogenous mixture?
A – carbon dioxide
B – purified air
C – a block of lead
D – ice water
Main Grid
Scientific Investigation
• How many liters are equivalent to
five milliliters?
A - 0.005 L
B - 0.05 L
C - 500 L
D - 5000 L
Main Grid
Scientific Investigation
Trial Measured
Volume (L)
1
5.20
2
5.20
3
5.19
4
5.20
5
5.20
The following data was
collected. The volume of the
gas is known to be 2.20 L.
This data reflects —
A - low precision and low
accuracy
B - low precision and high
accuracy
C - low accuracy and high
precision
D - high accuracy and high
precision
Main Grid
Scientific Investigation
• Which of the following best
describes why an experiment should
be repeated?
A - To organize the data
B - To produce a variety of results
C - To include another variable
D - To verify the observed results
Main Grid
Chemical Formulas
• The correct name for P2O5 is —
A - phosphorus (V) pentoxide
B - phosphorus oxide
C - phosphorus (II) oxide
D - diphosphorus pentoxide
Main Grid
Chemical Formulas
• The correct formula for copper (I)
bromide is —
A - CuBr
B - CuBr2
C - Cu2Br
D - Cu2Br3
Main Grid
Chemical Formulas
• What type of bonds are present in
(NH4)2S?
A – Ionic
B – Covalent
C – Ionic & Covalent
D – There are no bonds
Main Grid
Chemical Formulas
• What property does CF4 most likely
not have?
A – High boiling point
B – Soft and brittle
C – Low conductivity
D – Sharing of electrons
Main Grid
Chemical Formulas
• How many atoms does (NH4)2SO4
have?
A - 12
B - 18
C - 15
D - 10
Main Grid
Chemical Formulas
• What is the shape of CH4?
A – linear
B – trigonal planar
C – tetrahedral
D – pyramidal
Main Grid
Chemical Formulas
• The correct name for PbSO3 is —
A – Lead Sulfite
B – Lead (II) Sulfite
C – Lead (IV) Sulfate
D – Lead Sulfur Trioxide
Main Grid
Atomic Structure and Periodicity
• How many valence electrons does a
neutral atom of silicon have?
A- 3
B- 4
C- 5
D- 6
Main Grid
Atomic Structure and Periodicity
• A scientist has found the following
isotope of oxygen:
19
O
8
How many neutrons are present in this
isotope?
A- 8
B - 11
C - 19
D - 27
Main Grid
Atomic Structure and Periodicity
• The elements that are characterized
as being highly reactive —
A - alkali metals
B - alkaline earth metals
C - halogens
D - lanthanoids
Main Grid
Atomic Structure and Periodicity
• The net charge on an aluminum ion is 3+
because there are —
A - 10 protons and 13 electrons in the atom
B - 13 protons and 10 neutrons in the nucleus
C - 10 neutrons and 13 electrons in the atom
D - 13 protons and 10 electrons in the atom
Main Grid
Atomic Structure and Periodicity
When an atom moves from excited to
ground state —
A - it moves faster
B - the light emitted by the atom is a type of
electromagnetic radiation
C - the Doppler effect shows a shift in
wavelength for H-atom light
D – it absorbs energy
Main Grid
Atomic Structure and Periodicity
• What is the main similarity among
elements in group 2?
A - Atomic radius
B - Chemical properties
C - Mass number
D- Boiling point
Main Grid
Atomic Structure and Periodicity
• Which of the following requires the
least energy to remove an electron?
A - Br
B-K
C - Al
D - Na
Main Grid
Misc.
• What is the molecular geometry of
carbon disulfide?
A – linear and nonpolar
B – bent and polar
C – trigonal planar and nonpolar
D – pyramidal and polar
Main Grid
Misc.
• Which of the following is a nonpolar
molecule?
A – HCl
B – H 2O
C – CCl4
D – CH3F
Main Grid
Misc.
Who determined that an atom is made
up of mostly empty space using gold
foil?
A - Bohr
B - Millikan
C - Moseley
D - Rutherford
Main Grid
Misc.
• Which of the following best describes
sublimation?
A - A solid melting to a liquid
B - A solid melting to a liquid, which then
evaporates
C - The movement of gaseous particles so that
they fill the space they occupy
D - A solid forming a gas
Main Grid
Misc.
What element is represented by
[He]2s22p6 ?
A – Ne
B – Ca
C – Ar
D – Li
Main Grid
Misc.
Convert Convert 2.8 x 105 centimeters
(cm) to kilometers (km).
A – 20.8 km
B – 2.8 km
C – 0.28 km
D – 0.028 km
Main Grid
Misc.
Dumbbell shaped orbital are called:
A – s-orbitals
B – p-orbitals
C – d-orbitals
D – f-orbitals
Main Grid