End of Year Jeopardy

Chemistry

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

200

Write the following numbers in scientific notation

0.0042
31000

4.2 x 10^-3
3.1 x 10⁴

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

400

Name the following compounds:

Na₂O

BeCl₂

CO₂

Sodium Oxide

Beryllium Chloride

Carbon Dioxide

500

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

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

D) Toby

More Chemistry

100

Convert 46 L to mL

46,000 mL

200

How many sig figs do the following numbers have:
601
2010
350
0.0450

3
3
2
3

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

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

500

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

21.4%

Bonus Chemistry

100

Draw the Lewis dot structure for PH₃.

Correct structure

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

300

Balance the following Reaction:

C₃H₈ + O₂ -> CO₂ + H₂O

1, 5, 3, 4

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

500

Which molecule is the lightest?

NH₃
O₂
HCl
BH₃

BH₃

Extra Chemistry

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

200

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

Cl, Ni, Rb, Ti

Rb

300

How many grams are in 34 L of H₂0 at STP?

27.3 grams

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

500

What would the molarity be if I mix 0.4 moles in to 11 L?

0.036

Chemical Science

100

Elements with the same number of protons and electrons but different numbers of neutrons are _____________.

Isotopes

200

Draw the lewis dot structure for Cl₂

Cl-Cl (with 7 dots around both Cls)

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

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

Convert 4.5 x 10²² atoms to grams of Argon

2.99 grams