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100
Actual Value = 54 L
Trial 1 = 31 L
Trial 2 = 33 L
Trial 3 = 31 L

Is this data accurate, precise, or both?
Precise
100
Convert 46 L to mL
46,000 mL
100

Draw the Lewis dot structure for PH3.

Correct structure

100
The atomic number is equal to the number of ___________. To find the atomic mass, you add the number of ____________ and ____________.
Protons
Protons and Neutrons
100
Elements with the same number of protons and electrons but different numbers of neutrons are _____________.
Isotopes
200
Write the following numbers in scientific notation

0.0042
31000
4.2 x 10-3
3.1 x 104
200
How many sig figs do the following numbers have:
601
2010
350
0.0450
3
3
2
3
200

Who was NOT one of Mr. Marshall's teachers at George Mason HS?

A) Mr. Walsh
B) Mr. Visna
C) Ms. West
D) Senora Garcia

C) Mr. Visna

200
Which of the following elements will have the largest atomic radius?

Cl, Ni, Rb, Ti
Rb
200
Draw the lewis dot structure for Cl2
Cl-Cl (with 7 dots around both Cls)
300
Match the following scientists to the discovery:
Bohr, Dalton, Rutherford, Thompson

Atomic Theory, Electron, Gold Foil (density in nucleus), Model of an atom
Bohr = Atomic Model
Dalton = Atomic Theory
Rutherford = Gold Foil experiment
Thompson = Electron
300
Find the average of the following numbers and put your answer in the correct # of sig figs:

5.01, 3.1, 5.50
4.5
300
Balance the following Reaction:

C3H8 + O2 -> CO2 + H2O
1, 5, 3, 4
300
How many grams are in 34 L of H20 at STP?
27.3 grams
300

1C3H8 + 5O2 -> 3CO2 + 4H2O


If I have 3 moles of C3H8 and excess oxygen how many grams of H2O will I produce?

216.18 g

400

Name the following compounds:

Na2O

BeCl2

CO2

Sodium Oxide

Beryllium Chloride

Carbon Dioxide

400

Who was NOT one of Mr. Marshall's teachers at George Mason HS?

A) Mr. Stewart
B) Ms. O'Keefe
C) Ms. Smith
D) Mr. Laub

C) Ms. Smith

400

If I have 35 mL of a 1.1 M solution and dilute it to 51 mL, what would be the new concentration?

0.75 M

400

How does coolant work inside a refrigerator? (pick two)

A) Condensation absorbs heat energy
B) Evaporation absorbs heat
              &
C) Low pressure inside the fridge high pressure outside
D) High pressure inside the fridge low pressure outside

B) Evaporation absorbs heat
&
C) Low pressure inside the fridge high pressure outside

400
If I have a gas at 0.6 atm at 220 K and increase the temperature to 270 K, what would be the new pressure?
0.74 atm
500

What is the name of Mr. Marshall's cat?

A) Krypton
B) George
C) Meowth
D) Toby

D) Toby

500
Find the percent error of given that the actual value is 56 grams and the measured is 44 grams.
21.4%
500

Which molecule is the lightest?

NH3
O2
HCl
BH3

BH3

500
What would the molarity be if I mix 0.4 moles in to 11 L?
0.036
500
Convert 4.5 x 1022 atoms to grams of Argon
2.99 grams
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