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

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 ___________

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

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

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

Percentage error tells you… Mass Density Accuracy Precision Accepted Value

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

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

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

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

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

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

Convert the following…… 1) 20 cm = ______________ m 2) 0.032 L = _____________ mL 3) 45 m = ______________ nm 4) 805 dm = ______________ km

How do you get a DERIVED unit?

Convert the below using scientific notation: 124 = _______ 93000.00 = _________ 0.00000000043 = ________

Find the mass of 250. 0 mL of benzene. The density of benzene is 0 Find the mass of 250.0 mL of benzene. The density of benzene is 0.8765 .GO… 250 ml Times 8765/1ml = 219.125 g

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

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?

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

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

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?

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

What does the slope represent?

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