Chemistry Final Exam

Reactions

100

What type of reaction is this?

Sodium metal reacts with water

A. Synthesis

B. Decomposition

C. Combustion

D. Single Replacement

E. Double Replacement

Single Replacement

200

What type of reaction is this?

AlCl₃ + Na₂SO₄ --> Al₂(SO₄)₃ + NaCl 

A. Synthesis

B. Decomposition

C. Combustion

D. Single Replacement

E. Double Replacement

Double Replacement

300

Is the following equation balanced or unbalanced?

Al + O₂ --> 2Al₂O₃

A. Balanced

B. Unbalanced

C. There's no way to tell

Unbalanced

400

Determine the missing reactant:

2___ + Cr₂O₃ --> Al₂O₃ + 2Cr

A. Cr

B. H₂

C. O₂

D. Al

Al

500

What is the correct formula for aluminum hydroxide?

Al(OH)₃

Stoichiometry

100

How do you go from moles to grams?

A. Multiply by Avogadro's number

B. Divide by Avogadro's number

C. Multiply by molar mass

D. Divide by molar mass

Multiply by molar mass

200

Which is NOT true of significant figures?

A. all zeroes between non-zero numbers are always significant

B. zeroes to the right are only significant if there is a decimal point

C. all zeros to the left are always significant

D. all non-zero numbers are always significant 

All zeros to the left are always significant

300

What percent of sodium hydroxide (NaOH) is oxygen?

A. 57.46%

B. 33.00%

C. 40.00%

D. 16.00%

40%

400

Which list shows the correct number of moles of each substance in: Mg(NO₃)₂

A. Mg=2, N=2, O=6

B. Mg=1, N=6, O=2

C. Mg=1, N=2, O=6

D. Mg=1, N=6, O=6  

Mg=1, N=2, O=6

500

What is the molar mass of Ca(OH)₂

A. 219.9 g/mol

B. 210.0 g/mol

C. 74.1 g/mol

D. 98.9 g/mol

74.1 g/mol

Thermochemistry

100

When water vaporizes, does entropy increase or decrease?

A. Increase

B. Decrease

C. Doesn't change

D. Not enough information

Increase

200

Delta H is a measure of what?

A. the energy of the products

B. increase or decrease in disorder

C. change in energy

D. bond energy

Change in energy

300

What happens to entropy when mercury is combined with oxygen: 2Hg + O₂ --> 2HgO

A. Increase

B. Decrease

C. Doesn't change

D. Not enough information 

Decrease

400

A temperature rise after mixing two solutions is an indication of what reaction type? 

A. Endothermic

B. Exothermic

C. Not enough information

Exothermic

500

A reaction where more energy is released making the products than is absorbed breaking apart the reactants is: 

A. Endo thermic

B. Exothermic

C. Not enough information

Exothermic

Acids/Bases

100

Solutions with a high concentration of hydrogen ions are: 

A. Acidic 

B. Alkaline

C. Neutral

D. Concentrated

Acidic

200

Molarity is a measure of:

A. the ratio of hydrogen to hydroxide 

B. the ratio of solvent to solution 

C. the ratio of hydrogen to solvent 

D. The ratio of solute to solution

The ratio of solute to solution

300

Substances that turn litmus paper blue are:

A. Acids

B. Bases

C. Neutral

D. Concentrated

Bases

400

In a neutral solution, phenolphthalein will be:

A. Pink

B. Clear

C. Green

D. Yellow 

Clear

500

Rain water typically has a pH of 6.5, it would be considered...

Acidic

Random Trivia

100

What is the capital of Maine?

Augusta

200

How many sides does a dodecagon have?

12

300

What is the name of the youngest Jonas brother?

Frankie Jonas

400

y=mx+b  is the equation for a...

Line

500

Georgia O'Keeffe is famous for painting what?

Flowers and desert landscapes