1. January 20/23 Topic of the Day: Review
Quick Write:
If a block of maple wood has a density value of 3. 5g/cm3 if we cut the block in half what will result in the density value of that piece of wood?
If a sample of gas molecules are trapped in a balloon over a flask and are heated up, describe what will occur to the space and movement of those molecules.
How can you identify that a chemical change has taken place within a sample of matter?
Describe 4 steps to take in finding the volume of an irregular shaped object.
Define the following: isotope and quark
What is the Octet Rule?
Homework:
Study and review all note slides,
What to study topics from September, midterm review slides, old tests and quizzes
SWBAT:
Midterm Review

2. If a block of maple wood has a density value of 3
If a block of maple wood has a density value of 3. 5g/cm3 if we cut the block in half what will result in the density value of that piece of wood?
The density is the same because it is a ratio between mass and volume so it NEVER changes if cut in half or doubled in size!
2. If a sample of gas molecules are trapped in a balloon over a flask and are heated up, describe what will occur to the space and movement of those molecules.
The molecules gain energy so move faster and move away from each other.
3. How can you identify that a chemical change has taken place within a sample of matter?
The sample of matter will turn into a new substance and it cannot be turned back into its original form naturally.

3. 4. Describe 4 steps to take in finding the volume of an irregular shaped object. 1. measure and record a sample of water in a graduated cylinder. 2. Place your irregular object slowly into the graduated cylinder. 3. Record the new volume. 4. Find the difference between the two recordings and that is the volume  5. Define the following: isotope and quark Isotope: atom that has the same number of protons but a different number of neutrons. Quark: particle that makes up all other known particle in the nucleus of an atom 6. What is the Octet Rule? All atoms want to have 8 valence electrons in their outer shell, except He!

4. Study for your Midterms!
Midterm Practice
BLOCK
MASS
VOLUME
DENSITY A
40.7 g
a) ______
0.75g/ cm3 B
b) _____
87.4 cm3
0.50 g/ cm3 C
14.22 g
7.9 cm 3

5. Study for your Midterms!
Quick Write Midterm Prep:
Solve for the following conversions:
78.9 g = ____________mg 254 Kl = ______________L
21 inches =____________cm 0.08 Hm = _____________ dm
0.08 Hm = ___________Dm cg = ______________g

6. Write Boyle’s Law in the box:
With a fixed amount of gas, when the ___________ is increased,
the volume __________. When the __________ is decreased, the volume __________.
Example: Problem:
A sample of nitrogen gas occupies a volume of mL at 750 torr pressure.
What volume will it occupy at 975 torr pressure? Answer ______
Given and Units
Equation
Substitute and Solve

7. CHARLES’ LAW Write Charles’ Law in the box: Charles’ Law:
With a fixed amount of gas, when the ___________ is increased, the
volume __________. When the __________ is decreased, the volume __________.
Example Problem:
A sample of helium gas occupies a volume of mL at 15 °C.
What volume will it occupy at 85°C? Answer _______________
Given and Units
Equation
Substitute and Solve
K = °C + 273

8. Can you answer the following using your Colored Periodic Table?
In Group 15 you can find which Family? _________________
In Group 18 you can find which Family? _________________
In Groups 3-12 contain which Family? __________________
Identify the two liquid elements found on the Periodic Table, write the symbol and the element name. ________________ ________________
Write the valence electron number at the top of each Family with the exception of the Transition Metals.
Is Hg a metal, non metal or metalloid? ______________
List all of the Metalloids. ________________________________________
Is Hydrogen part of the Alkali Family? ___________
What is the valence electron number for He? ______ What Family is it a part of?_______________
Label the Families on the blank Periodic Table below.

10. Solve the following problems.
Element
Symbol
Atomic #
Mass #
# of
protons
neutrons
# of electrons
Electron Energy Level Configuration
1. ____ 27
2._____ 34
Find the Valence Electron Xe P Po Sr Ga S He Si
Name
Valence # He P Mg As Ca Kr

11. Se He Ar For each Element complete the following:
Identify the Atomic Number
Write the electron energy level configuration
Draw the Bohr Model
Identify the valence electron number
Draw the Lewis Dot Diagram
Se He Ar

12. Identify the number of atoms within this molecule or compound
Identify the number of atoms within this molecule or compound. 2Mg(NO3)2 NaNO2 3KHCO3

13. Vaporization - Condensation - Sublimation - Melting - Crystallization - Amorphous - John Dalton - JJ Thompson - E. Rutherford - N. Bohr - Ionization energy - Anions - Cations -

14. Electron affinity
- Protons
- Electrons
- Neutrons
- Quark
- Atomic Number
- Atomic Mass
- Mass Number
Isotopes
Chemical Bonds
- Charles Law
- Boyle’s Law
- Ions
- Ionic Bonds
- Covalent Bonds

15. Study for your Midterms!
Midterm Practice
BLOCK
MASS
VOLUME
DENSITY A
40.7 g
a) 54.3 cm3
0.75g/ cm3 B
b) 43.7g
87.4 cm3
0.50 g/ cm3 C
14.22 g
7.9 cm 3
1.8 g/cm3

16. Study for your Midterms!
Quick Write Midterm Prep:
Solve for the following conversions:
78.9 g = mg 254 Kl = 254,000 L
21 inches cm Hm = dm
0.08 Hm = 0.8 Dm cg = g

17. V2 = 366.2 ml BOYLE’S LAW Write Boyle’s Law in the box: Boyles’ Law:
With a fixed amount of gas, when the ___________ is increased,
the volume __________. When the __________ is decreased, the volume __________.
Example: Problem:
A sample of nitrogen gas occupies a volume of mL at 750 torr pressure.
What volume will it occupy at 975 torr pressure? Answer ______
Given and Units
Equation
Substitute and Solve
V2 = ml

18. V2 = 410.2ml CHARLES’ LAW Write Charles’ Law in the box: Charles’ Law:
With a fixed amount of gas, when the ___________ is increased, the
volume __________. When the __________ is decreased, the volume __________.
Example Problem:
A sample of helium gas occupies a volume of mL at 15 °C.
What volume will it occupy at 85°C? Answer _______________
Given and Units
Equation
Substitute and Solve
K = °C + 273
V2 = 410.2ml

19. Can you answer the following using your Colored Periodic Table?
In Group 15 you can find which Family? nitrogen
In Group 18 you can find which Family? Noble gas
In Groups 3-12 contain which Family? Transition metals
Identify the two liquid elements found on the Periodic Table, write the symbol and the element name. Br Hg
Write the valence electron number at the top of each Family with the exception of the Transition Metals.
Is Hg a metal, non metal or metalloid? metal
List all of the Metalloids. B, Si, Ge, As, Sb, Te, Po, At
Is Hydrogen part of the Alkali Family? halogen
What is the valence electron number for He? 2 What Family is it a part of? Noble Gases
Label the Families on the blank Periodic Table below.

20. NOBLE GASES
ALKALI
CARBON
ALKALINE EARTH
BORON
NITROGEN
OXYGEN
HALOGEN
TRANSITION
LANTHINOID
ACTINOID

21. Solve the following problems.
Element
Symbol
Atomic #
Mass #
# of
protons
neutrons
# of electrons
Electron Energy Level Configuration Co
1. ____ 27 59 32
2-8-17
2._Se____ 34 79 45
Find the Valence Electron Xe P Po Sr Ga S He Si
Name
Valence # 8 5 6 2 3 4 He P Mg As Ca Kr

22. Se He Ar For each Element complete the following:
Identify the Atomic Number
Write the electron energy level configuration
Draw the Bohr Model
Identify the valence electron number
Draw the Lewis Dot Diagram
Se He Ar

23. Identify the number of atoms within this molecule or compound
Identify the number of atoms within this molecule or compound. 2Mg(NO3)2 NaNO2 3KHCO3 Mg 2 Na 1 K 3 N 4 N 1 H 3 O 12 O 2 C 3 O 9

24. The end of the study guide.