1. Semester Exam Review

2. Where on the Periodic Table would metals, nonmetals and metalloids be located?

3. Describe the properties of metals, nonmetals and metalloids.
have luster, malleable, ductile, strong (resist bending), high melting and boiling points, good conductors
do not have luster, brittle, not malleable, not ductile, brittle, low melting and boiling points, not good conductors
tendencies of both metals and nonmetals, make good semiconductors

4. Using the Periodic Table, identify the
symbols for the following elements.
Nitrogen-
Oxygen-
Silicon- N O Si

5. What is a compound? How is it different than an element
2 or more elements combined
pure substance that can not be
broken down

6. Determine if the following are compounds or elements.
H2O-
Na-
C3H8-
H2SO4-
Ag-
Compound
Element

7. How many elements are found in the
following equation? List them.
CH O2  CO2 + 2H2O
3 Elements:
Carbon
Hydrogen
Oxygen

8. How many atoms are found in C6H12O6?
= 24

9. What are the most common elements found in the Earth’s crust, the atmosphere, oceans and living things?
Earth’s crust-
Atmosphere-
Oceans-
Living things-
Oxygen & Silicon
Nitrogen & Oxygen
Oxygen & Hydrogen
Oxygen & Carbon

10. A cube is a perfect square… All sides are equal!
How do you determine the volume of a cube?
Length x Width x Height
Width
A cube is a perfect square… All sides are equal!
Height
Length

11. Step 3 Level – Step 1 Level = volume of irregular object
How do you determine the volume of an irregular object?
Measure water in a cylinder.
Add irregular object (Ex. Marble, Paper clip, …)
Remeasure the water level in the cylinder.
Calculate the difference in water level by subtracting the beginning water level (step 1) from the water level once the irregular object has been added (Step 3).
Step 3 Level – Step 1 Level = volume of irregular object

12. How do you measure the mass of an object?
Measure weight with a triple beam balance
- or -
Density x Volume
Mass
Volume
Density

13. How do you determine the density of an object?
Density = Mass/Volume
Mass
Volume
Density

14. D = 5g/ml3 Mass = 100 g Volume = 70ml – 50 ml = 20 ml
A graduated cylinder begins with 50ml of water. After a 100g marble is added to the cylinder, the level of water increases to 70ml. What is the density?
Mass = 100 g
Volume = 70ml – 50 ml = 20 ml
Density = Mass/Volume
D = 100g/20ml
D = 5g/ml3
Mass
Volume
Density

15. D = 0.3125 g/cm3 Mass = 20 g Volume = Length x Width x Height =
A 20g cube has sides that are 4cm. What is the density? 4 4
Mass = 20 g
Volume = Length x Width x Height =
4 x 4 x 4= 64 cm3
Density = Mass/Volume
D = 20/64
D = g/cm3 4
Mass
Volume
Density

16. What evidence can be used to determine if a chemical reaction has occurred?
Gas Bubbles
Precipitate Formed (Solid)
Color Change (Must be a completely new color)
Temperature Change (Hot/Cold)
Taste/Smell
Light

17. Naturally formed, inorganic solid with crystalline structure.
What is a mineral?
Naturally formed, inorganic solid with crystalline structure.

18. A variety of physical properties are used to identify minerals
A variety of physical properties are used to identify minerals. Describe the following.
Luster-
Streak-
Hardness-
reflects light
color in powder form (we tested on the white porcelain plates in the mystery mineral id lab)
ability to resist being scratched (we also tested this in the mystery mineral id lab)

19. Which 2 elements can be scratched by calcite?
HARDNESS
MINERAL 1
Talc 2
Gypsum 3
Calcite 4
Fluorite 5
Apatite 6
Orthoclase 7
Quartz 8
Topaz 9
Corundum 10
Diamond
Which 2 elements can be scratched by calcite?
Gypsum & Talc

20. What can you determine by knowing
HARDNESS
MINERAL 1
Talc 2
Gypsum 3
Calcite 4
Fluorite 5
Apatite 6
Orthoclase 7
Quartz 8
Topaz 9
Corundum 10
Diamond
What can you determine by knowing
that a mineral has a hardness of 6.5?
Can be scratched by – diamonds, corundum, topaz & quartz.
It can scratch – talc, gypsum, calcite, flourite, & apatite

21. If you have a mineral that can scratch a
HARDNESS
MINERAL 1
Talc 2
Gypsum 3
Calcite 4
Fluorite 5
Apatite 6
Orthoclase 7
Quartz 8
Topaz 9
Corundum 10
Diamond
If you have a mineral that can scratch a
penny (3.5) but can be scratch by apatite,
what would be the hardness? 4

22. Describe the following ways that heat can be transferred and give an example.
Conduction-
Convection-
Radiation-
transfer through direct contact
transfer by movement in liquid or gas
transfer through matter/space as waves

23. Use an arrow to show which direction the energy would flow.
Soup - 85˚C
Fire ˚ C
*** Remember from the video warmer temperature will move to cooler temperature until they are equal.

24. Use the data chart to answer the question about M&Ms.
Color of Candy
Average % in each bag
Brown 30
Red 20
Yellow
Green 10
Orange
Blue