1. Welcome to Jeopardy! With your host…. Mrs. Einstein
Chemistry Unit 2
Welcome to Jeopardy!
With your host…. Mrs. Einstein

2. What is the difference between: Accuracy and Precision?
Accuracy is… how close a measurement is to an _______________
Precision is how close a series of measurements are to ___________

3. Which is a SI base unit?
Seconds
Kelvin
Gallons
Mile
Feet

4. So which term below best describes the amount of matter in an object?
Metric unit
Density
Malleability
Mass
Length

5. Which is NOT an appropriate unit for measuring density
g/ml
Kg/ml
g/cm

6. Percentage error tells you…
Mass
Density
Accuracy
Precision
Accepted Value

7. So when 2 measurements are close to each other they are…
Accurate
Accurate and Precise
Precise
Precise and Accepted value
Accepted value

8. Which Unit is GREATER?
1 nanogram
1 centigram
1 milligram
1 microgram

9. Which is a derived unit?
Length
Mass
Density
Volume
None of these

10. The unit mL is used to express
Length
Mass
Density
Volume
Meters

11. The BEST unit for mass is ______
The BEST unit for mass is ______. While the BEST unit for amount is _______.
kilogram and kelvin
gram and centimeter
centimeter and mol
meter and mol
gram and mol
kilogram and centimeter
milliliter and mol

12. Using the METRIC conversion table, convert 0.014 L to:
mL________
KL________
UL________

13. Convert the following……
1) 20 cm = ______________ m
2) L = _____________ mL
3) 45 m = ______________ nm
4) 805 dm = ______________ km

14. How do you get a DERIVED unit?

15. Convert the below using scientific notation:
124 = _______
= _________
= ________

16. Find the mass of 250. 0 mL of benzene. The density of benzene is 0
Find the mass of mL of benzene. The density of benzene is GO…
250 ml Times 8765/1ml = g

17. So a block of LEAD has dimensions of 4.50 cm by 5.20cm by 6.00 cm.
The BLOCK literally weighs 1587g….SO what’s the density of the LEAD? GO

18. So a student in Chemistry is completing a measuring lab
So a student in Chemistry is completing a measuring lab. She found the measurement to be 3.40cm. The correct value is 3.36 cm.
Calculate the percentage error?

19. Dimensional Analysis:
HOW many seconds are there in 782 minutes?
_________

20. Dimensional Analysis:
HOW many milligrams are there are in 62.4 oz?
**Hint** 1 lb= 454g, 1 lb=16oz
_________

21. If the volume of 5 pennies was 1. 5 ml and the mass was 11. 62g
If the volume of 5 pennies was 1.5 ml and the mass was 11.62g. What was the density?

22. Which metal was your penny made mostly of?
Element
Atomic Symbol
Density (g/mL)
Melting Point
Aluminum Al
2.70
660ºC
Copper Cu
8.96
1083ºC
Iron Fe
7.86
1535ºC
Nickel Ni
8.90
1453ºC
Titanium Ti
4.50
3260ºC
Zinc Zn
7.14
420ºC
Zirconium Zr
6.49
1852ºC

23. What does the slope represent?

24. Bonus Jeopardy
What is the length of a textbook that is 0.65 yards expressed in meters?