Chemistry Final II

Reactions

100

In which type of reaction is there one compound reactant and one element reactant? 

A. Synthesis

B. Decomposition

C. Single Replacement

D. Double Replacement

Single replacement

200

Identify the reaction:

Fluorine gas is reacted with Hydrochloric acid (HCl)

A. Synthesis

B. Decomposition

C. Combustion

D. Single Replacement

E. Double Replacement

Single Replacement

300

__H₂ + O₂  --> 2H₂O

What number goes in the blank?

2

400

Predict the products of the following reaction:

2Na + 2H₂O -->

(Hint: Don't forget charges!)

Na₂O + H₂

500

What is the missing product:

Sr(ClO₃)₂ + (NH₄)2SO₄ --> SrSO₄ + _______

NH₄ClO₃

Stoichiometry

100

Fluorine is diatomic. What is the molar mass of fluorine gas?

A. 9 g/mol

B. 38.00 g/mol

C. 18 g/mol

D. 19.00 g/mol

 

38.00 g/mol

200

How many particles are in one mole?

6.02 x 10²³

300

How many moles of oxygen are in Al2(SO₄)₃?

A. 24

B. 7

C. 1

D. 12

12

400

What is the molar mass of CH₄?

A. 13.02 g/mol

B. 20.01 g/mol

C. 16.05 g/mol

D. 12.01 g/mol  

16.05 g/mol

500

What is a significant figure?

A. A way to match the least precise measurement

B. A way to round your final answer

C. Both of these

Both of these

Thermochemistry

100

The second law of thermodynamics states that in a closed system entropy will always:

A.  stay the same

B. decrease or increase

C. stay the same or decrease

D. stay the same or increase

Say the same or increase

200

What is the Si unit of energy?

The Joule

300

What change in entropy happens when water vapor condenses on a car's windshield overnight? 

A. Increase

B. Decrease

C. Stay the same

D. No way to tell

Decrease

400

Any combustion reaction would be considered...

A. Endothermic

B. Exothermic

C. Not enough information

Exothermic

500

How does entropy change in the following reaction:

 2C₈H₁₈ + 25O₂ --> 16CO₂ + 18H₂O

A. Increase

B. Decrease

C. Stays the same

D. Not enough information

Increase

Acids/Bases

100

Water is considered both an acid and a base because...

A. it reacts with metals 

B. it acts as both solute and solvent 

C. it produces both hydrogen and hydroxide ions

D. it is a universal solvent 

It produces both hydrogen and hydroxide ions

200

Solutions with a high concentration of hydroxide ions are...

Alkaline/Basic

300

Substances that turn litmus paper red are...

Acidic

400

pH paper is considered the most accurate indicator because...

A. it can be used to determine exact pH 

B. it will only react to alkaline solutions 

C. it is the only indicator which reacts to both acids and bases 

 D. it does not change the entire solution's color 

It can be used to determine the exact pH

500

What is the formula for calculating molarity?

M= mol/vol (L)

Random Trivia

100

What currency is used in Japan?

The Yen

200

What was the first YouTube video to reach 1 billion views in 2012?

PSY - Gangnam Style

300

What famous baseball player changed history with jersey #42?

Jackie Robinson

400

What is the largest desert on Earth?

Antarctica 

500

The ABC network is owned by which large entertainment company?

Disney