Intro to Chemistry
Atomic Structure
Periodic Table
Chemical Bonds
Chemical Reactions
Kinetic Molecular Theory
Thermochem
This is NOT chemistry!
100

What is the difference between a physical change and a chemical change?

A chemical change involves the the production of a new substance through a chemical reaction. A physical change is just a change in form.

100

Which subatomic particle is involved in bonding? Be specific!

Valence electron

100

What property of atoms corresponds to its group number?

Number of valence electrons

100

Which type of bond is described as a two nonmetals sharing valence electrons?

Covalent Bond

100

What type of reaction is described as a single reactant breaking into two or more products?

Decomposition Reaction

100

Which state of matter has a fixed volume but no definite shape?

Liquid

100

What unit is thermal energy measured in?

Joules

100

Name two presidents born in Massachusetts

John Adams

John Quincy Adams

John F. Kennedy

George W. Bush

200

How many significant figures are in the number below:

0.005020

4

200

Which subatomic particle varies between isotopes of the same element?

Neutron

200

What element is found in period 4, group 7?

Manganese (Mn)

200

What is the name of the following compound?

Cu3(PO4)2

Copper (II) Phosphate

200

What is the symbol for aqueous and what does it mean?

(aq)

Aqueous means a substance dissolved in water

200

If a fixed amount of gas at a constant volume gets heated up, what would happen to its pressure?

Pressure would increase

Gay-Lussac's Law

200

If a reaction occurring in a calorimeter causes the temperature of the water to increase, what type of reaction took place: endothermic or exothermic?

Exothermic

200

What are the first 9 numbers of pi?

3.14159265

300

Which of the following is NOT an example of a mixture?

A) corn starch       C) Pizza

B) Salad               D) Air

A) Corn Starch

300

Define "cation"

An atom that has lost an electron and has a positive charge

300

What family is found in the middle of the periodic table?

Transition Metals

300

Which of the following compounds would have the highest boiling point?

A) H2O                      C) HCl

B) CH4                       D) FeO

D) FeO

300

Balance the following equation:

__ NH3 + __ O2 --> __ N2 + __ H2O

4 NH3 + 3 O2 --> 2 N2 + 6 H2O

300

Which phase change is being described below?

A substance with a fixed particle arrangement and low kinetic energy absorbs enough heat energy to overcome its attractive forces and its particles begin to flow around one another.

Melting

300

Substance A has a specific heat of 1.2 J/gC and Substance B has a specific heat of 2.4 J/gC. If both substances both gain 1000 J of energy, which substance would have the higher final temperature?

Substance A

300

Who won the first season of Survivor in 2001?

Richard Hatch

400

If 80 mL of maple syrup has a mass of 109.6 g, what is the density of maple syrup?

109.6 g / 80 mL = 1.37 g/mL

400

What is the charge of Oxide?

-2

400
What is the most electronegative element on the periodic table?

Fluorine

400

What type of bond would form from a compound made of two elements with electronegativities of 3.8 and 1.2?

A) Ionic            C) Metallic

B) Covalent       D) Ionic or Covalent

A) Ionic

400
What would be the products for the decomposition of K2CO3

K2O + CO2

400

How many grams of carbon dioxide are present in 500 L at 2.0 atm and 300 K?

PV = nRT

(2)(500) = n(0.0821)(300)

n = 40.6 mol x 44 g/1 mol =

1786.4 g H2

400

Identify the three types of heat transfer that we have learned and an example of each.

Conduction - anything in which heat is transferred through direct contact

Convection - anything in which heat is transferred due to the movement of a fluid

Radiation - anything in which heat is transferred without direct contact

400

Most of you were born in either 2007 or 2008. Name the Chinese animal for at least one of these years. (extra 200 points if you get both).

2007 - pig

2008 - rat

500

A student takes the following measurements:

73.1 mL, 72.4 mL, 74.8 mL, 73.9 mL

The true value of this experiment is 72.8 mL, what is the percent error if the student takes the average of their measurements.

(73.1 + 72.4 + 74.8 + 73.9) / 4 = 73.55 -> 73.6

(73.6 - 72.8) / 72.8 = 1.10%

500

An atom with 12 protons, 14 neutrons, 13 electrons...

A) has a positive charge

B) has a mass number of 26

C) Has an atomic number of 14

B) has a mass number of 26

500

What is special about Noble Gases?

They generally do not make bonds due to having eight valence electrons in their outer energy level.

500

Draw the lewis structure for HNO


500

Write a balanced equation is which a precipitate is formed

Answers may vary

500

How many grams of Oxygen gas are present in 15 liters at STP?

15 liters x 1 mol/22.4 L x 32 g/1 mol = 21.4 g

500

Draw a picture of a calorimeter and explain how they work and what they measure

A calorimeter surrounds a system with water.

Calorimeters measure the change in energy in a reaction by measuring the change in temperature of water.

500

Even though it doesn't exist, the unicorn is the national animal of what country?

Scotland