Chemistry Review 6

Balancing Equations

100

T/F: the following reaction is balanced

3MgO => Mg + O₂

False

200

Fill in the coefficients:

___H2 + ____ O2 => _____ H20

4,1,2

300

T/F: The following equation is balanced:

2 CH4 + 4O2 => 2CO2 + 4H2O 

False

400

Fill in the coefficents:

___ Al + _____ O2 => _____ Al2O3

4,3,2

500

Fill in the coefficients

____ Fe2O3 + _____C => ____ Fe + ___ CO2

2,3,4,3

Ionic Bond

100

Ammonium Iodide

NH₄I

200

Silver Chromate

Ag₂CrO₄

300

Potassium Carbonate

K₂CO₃

400

Aluminum Oxide

Al₂O₃

500

Lead (IV) Hydroxide

Pb(OH)₄

Covalent Bond

100

H₂S

Dihydrogen sulfide

200

SiF₄

Silicon Tetrafluoride

300

CBr4

Carbon TetraBromide

400

BF₃

Boron Trifluoride

500

NH₃

Ammonia

Labs

100

What is the shape of CO₂?

Linear

200

Name one of the pigments observed from the plant chromatography lab

carotene, chlorophyll

300

What was the irregular object used in the "irregular object" density lab?

a penny

400

After recrystallizing the copper (II) sulfate pentahydrous compound, what was the new formula?

cooper (II) sulfate 

(evaporated the H2O)

500

What type of reaction took place during the elephant toothpaste lab?

Decomposition of hydrogen perioxide

Misc

100

What is a sigma bond?

single bond

200

How many protons are found in Mg+

12

300

The branch of chemistry that involves the body

biochemistry

400

What carbon isotope is the most abundant?

Carbon-12

500

Convert 1.2g of carbon dioxide to moles

0.027mol