Chapter 1: Introduction, Matter, Energy, and Measurement
Chapter 2: Atoms, Molecules, and Ions
Chapter 3: Chemical Reactions and Reactions Stoichiometry
Random Stuff and Definitions
Extra (Depending on time)
100
What does temperature mean?
Measurement of hotness or coldness of an object.
100
Name either ionic or covalent and write the name if possible:
1. Lithium Oxide
2. P5O2
3. V2S5
1. Ionic
2. Covalent - Pentaphosphorus dioxide
3. Ionic - Vanadium (V) sulfide
100
What is a mole?
6.023 x 1023 atoms
100
What is a chemical bond?
It is the increased force of attraction that holds atoms together in a molecule.
200
How many significant figures are in the following:
1. 0.0003030
2. 304034
3. 3.449000 x 103
1. 4
2. 6
3. 10
200
Predict the chemical formula only:
1. N and F
2. Fe+2 and O
3. Ba and Cl
1. NF3
2. FeO
3. BaCl2
200
What kind of reaction is this?
K2CrO4 (aq) + 2 AgNO3 (aq)---> Ag2CrO4 (aq) + 2KNO3 (aq)
Double replacement
200
What is HCIO3?
Chloric acid
200
What is H2SO4
sulfuric acid
300
How many seconds in 1.34 days?
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds
300
Label this periodic table: Use the powerpoint to label
First:
Group IA - alkali metals
Group IIA - alkaline earth metals
Group VIIA - Halogens
Group VIIIA - Inert or nobel gases
Transition metals
Second:
Group A elements, Group B elements
Third:
Metals, Non-Metals, Metalloids
300
Find the number of moles in 4.02 x 1025 atoms of NH3
Use Avogadro's number
300
How many protons, neutrons and electrons are in the following:
Al+3
protons: 13
electrons: 10
neutrons: 10
400
Round to the appropriate significant digits:
0.302 cm x 293 cm - 2.2039 cm
I think it is 3 significant digits:
86.2821 cm2
86.3 cm2
400
A solid metal iron (IV) reacts with oxygen gas to form iron (IV) oxide which is a solid.
FeO2 (s) + O2 (g) -----> FeO(s) (Balanced already)
400
Balance the following equation:
_ Na3PO4 + _ KOH ---> _ NaOH + _ K3PO4
_ Al + _ HCl ---> _ H2 + _ AlCl3
1, 3, 3, 1
1, 6, 3, 2
400
The following is an isotope:
14
C
6
What is the number of protons, neutrons, electrons, and atomic mass?
6 protons
8 neutrons
6 electrons
12.011 amu
500
Convert the following:
4.03 J into kcalories
Given:
1 kcalories has 1000 calories
4.13 J in 1 calories
Check calculations
500
Write the following in word format:
One molecule of gaseous methane reacts with two molecules of gaseous oxygen to form one molecule of gaseous carbon dioxide and 2 molecules of gaseous dihydrogen monoxide (or water).
500
Convert the following:
4 mole of Ca into grams
Use the molar mass of calcium which is 40.08 g/mol.
500
What is the difference between mass number, atomic weight, formula weight, and molecular weight?
Mass number refers to number of protons and neutrons which can only be given to you unless proton and neutrons given.
Atomic weight is the average mass of an element's atoms (amu). This is also found in the periodic table or could be calculated.
Formula weight (FW) is the sum of all the atomic weights of the atoms (amu).
Molecular weight (MW) is the same thing as formula weight but more specific towards molecules.