Daltons Atomic Theory
All substances are made of atoms. Atoms are the smallest particles of
matter. They cannot be divided into smaller particles, created, or
All atoms of the same element are alike and have the same mass.
Atoms of different el
Unit 8: Kinetics & Equilibrium
SE i E EZN T SHEEE DELNE
Note Packet Unit 8:
Kinetics, Thermodynamics, &
Factors Affccvmg Rafe of raw-man:
: Mofurc of R
, @EE gm magggagg
answer H's-e foilowig quesans usng fhe chm? above.
Whm is the freezihg pain? Qf'fhe'subsiance?
is: WM? Esme boiling pinioh'subsmme? _W_ ,.
V 3. What is The meaning main? of rhe substm
Cu 02 + BCu + 203*
f net potential [E0] tor the overall reaction ?
(3) +108 volts
(4) +250 volts
2. Given the reaction: 2
2H 20 + electricity .9 2H2 + O2
in which type of cell would this reaction most likely
. According to Reference Table Fl which
substance is most soluble?
According to Reference Table F, which
compound is most soluble?
(A) AgBr (C) Agl
(B) PbCl2 (D) CaCl2
. Based on Re
CHEM NOTES - ELECTROCHEMlQTRY 2
l. Electrochemical Cells - use a redox reaction to produce electricity.
3) The following is a diagram of an electrochemical cell, where 2 half-cells are connected
to allow the flow of electrons.
b) In this aluminu
19 A chemical reaction between iron atoms and
oxygen molecules can oniy occur if
(I) the particles are heated
(2) the atmospheric pressure decreases
(.3) there is a cataiyst present
(1) there are efictive coilisions behveen the
:20 Given the equ
The Chemical Bond Ill
Polar bonds and polar molecules
1. How does a polar bond differ from a nonpolar bond? \
2, How does a polar bond differ from an ionic bond?
3. How is electronegativity difference used to help predict bond type? What values
Given the reaction:
2Cr + 3Cu2+ _, 3Cu + 203+
What is the net potential [E0] for the overall reaction .7
(l) +0.40 volt (3) +1.08 volts
(2) +0.46 volt (4) +2.50 volts
Given the reaction:
ZHZO + electricity .9 2H2 + 02
in which type o
Sample Bonding Questions
l. A chemical bond between two atoms results
- from a simultaneous
(1) attraction by the protons for the neutrons
(2) attraction by the two nuclei for the electrons
(3) repulsion by the valence electrons of the
Name Class Date
Unit 5 Solutions
Solutions and the Dissoiving Process
1. Choose words from the word list to fill in the blanks in the following paragraphs relating
to solutions and the dissolving process. The list groups word
Base your answers to questions 74 through 77 on the information below and on your knowledge of chemistrv.
In the late 19th century, the H allHmroult process was invented as an inexpensive way
to produce aluminum. In this process, AlZO3tf.) extracted from
A Voyage through Equations
After working on this worksheet, you should be able to do the following:
Given an equation, you should be able to tell what kind of reaction it is.
Predict the products of a reaction when given the reactants. '
1. Many chemical reacTions can easily run in boTh forward and reverse direcTions and are called
reacTions. The consequences of This reversible behavior is ThaT The reacTion will reach a
fomard reaction ma:-
cm reverse re
Le Chateliers Principle Worksheet
For the reaction below, which change would cause the equilibrium to shift to
CH4(g) + 2H2$(g) <-> CSz(g) + 4H2(g)
(a) Decrease the concentration of dihydrogen sulde.
(b) Increase the pressure on the sy
Worksheet: LeChatelier's Principle
Ammonia is produced commercially by the
N2(g> + 3 H2<g> <> 2 NH3<g> + heat
The formation of ammonia is favored by
(A) an increase in pressure
(B) a decrease in pressure
(C) removal of N2(g)
Base your answers to questions 73 through 75 on the information below.
A hydrate is a compound that has water molecules within its crystalstructure. The
formula for the hydrate CuS 04'5H20(s) shows that there are five moles of water for every
one mole of
Parts per Million
Freezing Point Depression and Melting Point Elevation Notes
What is the concentration of 02(g), in parts per million, in a solution that contains
0.008 gram of (Mg) dissolved in 1000. grams of H200)?
An aqueous solution contains 300.
Electrochemistry Worksheet 1
1. Write the appropriate half reactions and calculate the cell potential for each of the following
(21) Copper and aluminum
(b) Silver and zinc
(0) Copper and nickel
(d) Nickel and cadmiu
Chapter 23: Electrochemistrg Uoltaic Cells, Cell Potentials (p. 677681) Page 4
(Handout, p. 685-691, Notice: we calculate Ecell slightly differently than the book!)
1. Consider this voltaic cell made with
Mg and Ni:
a. part a is called the
b. What s
Double Replacement Reactions
The Cations and Anions switch partners : AB + XY 9 AY + BX
Ex: KOH + H2304 -) K2804 + H20
FeS + HC1-9' FeC12+ H23
Check the oxidation number to calculate the correct number of atoms.
Write correct formulas for the products in
Questions on Solubility (Table G)
Directions: refer to Table G, Solubility Curves, and answer the questions below.
Solubility Curves at Standard Pressure
i so. _
Yor me foHovxvmg (equammx:
Aggy u/xiginminx mmihcr: i0 cad 6iumm
- Delerminc what is <>~cidi26d and 1'6dUC6d
- \Rrite hafxrtactions to ltplBStfm oxidaxion and reduciem
0 Balance (he clcctmns and 1116 rcaction
2. Na 7+ Bra, 9 NaBr
Worksheet] 1-1 Name
Redox Reactions Period
1. What is a redox reaction?
2. Can oxidation occur without reduction? Explain.
3. Why would a nail corrode more quickly in saltwater than in distilled water?
4. a. What is the oxidation number of any atom in t
Oxidation and Reduction Practice
ln each of the following equations, indicate the element that has been oxidized
and the one that has been reduced. You should also label the oxidation state of
each before and after the process:
2 Na + FG