CHEM 111 Exam Review #1!

Functional Groups

100

This functional group is represented by an -OH bond.

Alcohol

200

This functional group is represented by -COOH, typically with a double bonded oxygen.

Carboxylic Acid

300

This functional group is represented by -NH2 bond.

Amine 

400

Draw an image of an alkene on your whiteboard.

C=C  or Carbon=Carbon double bond. 

500

Name the different functional groups present in this compound. 

CH3CHOHCH2COOH

Hint: There are two different groups.

1. Alcohol 

2. Carboxylic Acid  

Physical or Chemical?

100

Is it a chemical or physical change to burn wood for a fire? 

Chemical 

200

Is this a physical or chemical property? 

Melting Point

Physical 

300

True or False? 

The density of a substance is a chemical property.

False, it is a physical property. 

400

A bicycle is turning from blue to brown due to being left outside in the rain. 

Which type of change is that?

 Chemical Change

500

List both a physical and a chemical property.

Examples may vary. 

The Periodic Table

100

What is the subatomic particle that determines the element?

Proton

200

What is the name of Group 2A on the periodic table?

Alkaline Earth Metals 

300

DAILY DOUBLE! Pick your wager. 

Name Groups 1A, 2A, 7A, and 8A.

1A: Alkali Metals 

2A: Alkaline Earth Metals 

7A: Halogens

8A: Noble Gases 

400

What subatomic particle is responsible for creating different isotopes of elements?

Neutrons

500

What are the 3 main elemental classifications? 

Hint: The BIG groups of the periodic table.

 Metals, Non-metals, and Metalloids or Semi-metals. 

Sig Figs

100

How many significant figures are in the number 67.0120 ?

6

200

How many significant figures are in the number 0.00913 ?

3

300

True or False: 

The multiplication and division rule of sig figs means your answer is reported to the same number of sig figs as the number with the smallest in your problem.  

True

400

What are the two times when zeros are not significant?

1. Prior to first non-zero digit 

2. After a non-zero digit without a decimal

500

How many significant figures are in this number, 0.8017300 ?

7 

Calculations

100

Calculate the number grams in 2.6 moles of Fe (Iron).

140 grams Fe

200

What is the percent composition of C5H4O2 ? 

Molar Mass of C5H4O2 = 96.085 g/mol

Carbon: 62.5%

Hydrogen: 4.20% 

Oxygen: 33.3%

300

Convert 6.52 miles to kilometers. 

1 mile = 1.609 km

10.5 kilometers

400

Given the balanced equation below, convert moles of C (Carbon) to moles of Fe (iron). 

2Fe₂O₃ + 3C ---> 4Fe + 3CO₂

4 moles of Fe

500

Given the balanced equation below: 

Zn + 2HCl ---> ZnCl2 + H2

Start with 83 grams of Zn and convert to grams of ZnCl.

130 grams of ZnCl