Semester Exam Review. Where on the Periodic Table would metals, nonmetals and metalloids be located?

Semester Semester Exam Exam

ReviewReview

Semester Semester Exam Exam

ReviewReview

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

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

Describe the properties of metals, nonmetals and metalloids.

•Metals-

•Nonmetals-

•Metalloids-

Describe the properties of metals, nonmetals and metalloids.

•Metals-

•Nonmetals-

•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

Using the Periodic Table, identify the symbols for the following elements.

• Nitrogen-

• Oxygen-

• Silicon-

Using the Periodic Table, identify the symbols for the following elements.

• Nitrogen-

• Oxygen-

• Silicon-

N

O

Si

What is a compound? How is it different than an element

•Compound-

•Element-

What is a compound? How is it different than an element

•Compound-

•Element- 2 or more elements combined

pure substance that can not be broken down

Determine if the following are compounds or elements.

• H2O-

• Na-

• C3H8-

• H2SO4-

• Ag-

Determine if the following are compounds or elements.

• H2O-

• Na-

• C3H8-

• H2SO4-

• Ag- Compound

Element

Compound

Compound

Element

How many elements are found in the following equation? List them.

• CH4 + 2O2 CO2 + 2H2O

How many elements are found in the following equation? List them.

• CH4 + 2O2 CO2 + 2H2O

3 Elements:

• Carbon

• Hydrogen

• Oxygen

How many atoms are found

in C6H12O6?How many atoms are found

in C6H12O6?

6 + 12 + 6 = 24

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-

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

How do you determine the volume of a cube?

How do you determine the volume of a cube?

Length x Width x Height Length x Width x Height

A cube is a perfect

square… All sides are equal!

A cube is a perfect

square… All sides are equal!

Length

Wid

th

Heig

ht

How do you determine the volume of an irregular object?

How do you determine the volume of an irregular object?

1. Measure water in a cylinder.2. Add irregular object (Ex. Marble,

Paper clip, …)3. Remeasure the water level in the

cylinder.4. 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

How do you measure the mass of an object?

How do you measure the mass of an object?

• Measure weight with a triple beam balance

- or -

• Density x Volume

Mass

Volume Density

How do you determine the density of an object?

How do you determine the density of an object?

Density = Mass/Volume

Mass

Volume Density

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?

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 gVolume = 70ml – 50 ml = 20 ml

Density = Mass/Volume

D = 100g/20ml

D = 5g/ml3

Mass

Volume Density

A 20g cube has sides that are 4cm. What is the density?

A 20g cube has sides that are 4cm. What is the density?

Mass = 20 gVolume = Length x Width x Height = 4 x 4 x 4= 64 cm3

Density = Mass/Volume

D = 20/64

D = 0.3125 g/cm3

Mass

Volume Density

4

4

4

What evidence can be used to determine if a chemical reaction has occurred?

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

What is a mineral? What is a mineral?

Naturally formed, inorganic solid with crystalline

structure.

A variety of physical properties are used to identify minerals. Describe the following.

• Luster-

• Streak-

• Hardness-

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)

Which 2 elements can be scratched by calcite?

Which 2 elements can be scratched by calcite?

Gypsum & Talc

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?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

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?

If you have a mineral that can scratch a penny (3.5) but can be scratch by apatite, what would be the hardness?

4

HARDNESS MINERAL

1 Talc

2 Gypsum

3 Calcite

4 Fluorite

5 Apatite

6 Orthoclase

7 Quartz

8 Topaz

9 Corundum

10 Diamond

Describe the following ways that heat can be transferred and give an example.

• Conduction-

• Convection-

• Radiation-

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

Use an arrow to show which direction the energy would flow.

Use an arrow to show which direction the energy would flow.

Fire - 1000˚ C

Soup - 85˚C

*** Remember from the video warmer temperature will move to cooler temperature until they are equal.

Use the data chart to answer the question about M&Ms.

Use the data chart to answer the question about M&Ms.

Color of Candy Average % in each bag

Brown 30

Red 20

Yellow 20

Green 10

Orange 10

Blue 10

Brown

Red

Yellow

Green

Orange

Blue