Module 1 Review

Atoms and Periodic Table

100

Write the charges:

Protons = ________

Neutrons = _________

Electrons = _________

Protons = Positive (+)

Neutrons = Neutral (0)

Electrons = Negative (-)

200

Where are protons and neutrons located?

In the nucleus

300

We can write Carbon as "C"

C is the element's:

A. Formula

B. Name

C. Atomic Symbol (same as chemical symbol)

D. Compound

C. Atomic Symbol

400

Groups on the periodic table go:

A. Vertical - Up and down

B. Horizontal - Left to right

A. Vertical

500

Periods on the periodic table go:

A. Vertical - up and down

B. Horizontal - left to right

B. Horizontal - left to right

Elements, Molecules, Compounds

100

Which one is a molecule?

A. CO

B. H₂O

C. CO₂

D. H₂

H₂

200

CaO and CO₂

A. Two elements

B. One element

C. Two compounds

D. Two compounds and one element

C. Two compounds

300

H₂

What would be a better way to describe this? Why?

A. Element

B. Molecule

Molecule (more specific)

400

Which of these substances is an example of a compound?

A. H

B. NaCl

C. Au

D. Ne

NaCl

500

Elements vs. Compounds

_________ consist of only 1 type of atom, while __________ consist of at least 2 types of atoms. 

Elements

Compounds

Physical vs. Chemical Changes

200

Ice melting into water is a _____________ change. Physical or chemical?

Physical... state change!

300

Wood burning is a ____________ change. 

Physical or chemical?

Chemical change

400

Which is a sign of a chemical change?

A. Bubbles and fizzing

B. Metal melting

C. Tablets dissolving in water

A. Bubbles and fizzing

500

When two liquids are mixed, after a few minutes, white solid particles are formed and fall to the bottom of the test tube. 

Was this a physical change or chemical change?

Chemical change

Density

100

What two pieces of information do you need to calculate density?

Mass and Volume

200

What equation would you use to calculate density?

D = M/V

300

Mass = 20 g

Volume = 10 mL

Calculate Density (show your work!)

D = 2 g/mL

400

How can you measure the volume of an oddly shaped object?

Graduated cylinder

500

Density = 2 g/mL

Volume = 4 mL

What is the mass?

8 g

Minerals

100

What are the four common materials that can be used to measure hardness

Fingernail, Copper penny, glass, steel file

200

Hardest mineral = ___________

Softest mineral = _________

Diamond and Talc

300

What mineral on the Mohs Hardness Scale is harder than fluorite but softer than orthoclase?

Apatite

400

What mineral on the Mohs Hardness Scale is harder than quart but softer than corundum?

Topaz

500

A student determined that a mineral is orthoclase. What two tools did they use?

Glass and steel file