Unit 1 Test Review: Matter, Elements & the Periodic Table

MEASUREMENT:

1.  What are the 2 systems of measurement? Give some example units of each.

2.  Fill in the measurement chart:

Measurement & Definition / Base Unit / Instrument Used to Measure
Length
Volume
Mass
Temperature
Time

3.  1 mL = ___cm3

4.  What is the difference between a base unit and a derived unit? Give 3 examples of each.

5.  Describe the process used to measure the volume of a box vs. a rock.

6.  A brick measures 25 cm by 12 cm by 13 cm. What is the volume of the brick in cm3? How many milliliters of water would this brick displace?

7.  A cube measures 1.0 cm on each side. What is the volume of the cube? If this cube is dropped into 28.0 mL of water, what will be the new volume reading on the graduated cylinder?

SIGNIFICANT FIGURES:

1.  Why are significant figures important?

2.  How do you know what digits are counted as significant?

3.  How many sig figs are in the following numbers?

a.  89,501

b.  0.0290

c.  5,700

d.  2,000.

e.  0.30600

4.  Solve the problems below and write the answer in the correct number of sig figs:

a.  809.01 – 10.0 =

b.  250 / 5.0 =

c.  450.2 x 2.6580 =

d.  85.09 / 4.56 =

e.  51.02 + 2.0369 =

5.  Using the correct number of significant digits, make the following measurements. All measurement are in centimeters (cm):

UNIT CONVERSIONS & SCIENTIFIC NOTATION:

Use the Conversion Factor Sheet in your Glossary to solve the following problems. Show your work using bridges and correct amount of sig figs in your answer!

1.  How many hours is 23,870 minutes?

2.  How many seconds are in 28 hours?

3.  How many mm Hg are in 3.5 atm?

4.  You signed up for a 10.0K (km) race. How many miles will you be running?

5.  A newborn baby usually weighs around 7.0 pounds at birth. How many kilograms is that?

6.  What is 0.00579 m in scientific notation?

7.  How is 3. 90 x 10-4 written as a regular number?

8.  How is 8.49 x 103 written as a regular number?

MATTER & ITS PROPERTIES:

1.  What is matter? Name 3 things that are matter and 3 things that are NOT matter.

2.  What is the different between a physical property and a chemical property?

3.  Label the following properties of matter as either physical or chemical:

a.  Calculating the density of gold

b.  Salt dissolving in water

c.  Melting Ice

d.  Bleaching your hair

e.  Shooting off fireworks

f.  Sublimation of dry ice

DENSITY:

1.  What is density? What is the formula to solve for density?

2.  What kind of property of matter is it? Does it depend on the size or shape of the object?

3.  What is the unit for density?

4.  What is mass? What are the units for mass?

5.  Does mass change with location? If not, what can change with location?

6.  Solve the following density problems. Round to the correct number of sig figs.

a.  What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?

b.  Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.

c.  What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.

d.  What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3.

ACCURACY, PRECISION & % ERROR:

1.  What is accuracy? What is precision? Draw an example of each.

2.  What is the formula for percent error?

3.  For each of the following situations find the percent error involved. Round to the correct number of significant figures:

a.  Clyde Clumsy was directed to weigh a 500.0 g mass on the balance. After diligently goofing off for ten minutes, he quickly weighed the object and reported 458 g.

b.  Samantha S. Sloppiness measured the volume of her soda before she drank it for her midmorning snack. She measured the volume of the 12 oz. bottle to be 14 oz.

ELEMENTS, COMPOUNDS, SUBSTANCES & MIXTURES:

1.  What is an element vs. a compound?

2.  What is a chemical symbol? What does the symbol involve?

3.  What is the difference between a pure substance and a mixture? Give an example of each.

4.  What is the formula for percent composition?

5.  A mixture of salt and sand has a total mass of 749 grams. You separated the mixture through filtration and evaporation and found the mass of the sand to be 699 grams and the salt to be 50.0 grams. What is the mass percent composition of each?

6.  What kinds of mixtures exist? Give an example for each kind.

PERIODIC TABLE ORGANIZATION:

1.  Who is Dimitri Mendeleyev? What did he do and how did he do it?

2.  How is the periodic table organized? What are groups and periods?

3.  Where are the metals found on the periodic table? Where are the nonmetals found on the periodic table?

4.  What are the names for the groups 1A, 2A, 3B-12B, 7A and 8A?

PERIODIC TABLE TRENDS:

1.  What are the trends going DOWN a group?

2.  What are the trends going ACROSS a period?

3.  What is electronegativity? What is ionization energy?

4.  For each of the following, select the correct element: