Periodic Trends of the Elements
Hydrogen forms the H+ ion (resembles the alkali metals) and the H ion (resembles the halogens).
Strategy: To write the electron configuration, we refer to the information in Section 3.9 of the text. We
Element Symbols Derived From Latin Names
In this experiment, you will build models of molecules using a model kit. These models will
then be used as a guide to draw a three-dimensional representation of the molecule. This should
aid you in better visualization
SynTech Prelab Questions Chem
1.) Supply the structures of the following solvents, and rearrange them in order of
increasing polarity: hexane, ethyl acetate, water, dichloromethane, ethanol,
toluene, diethyl ethe
- Welcome to Nappy's Sacred Gold Egglocke! :D -
This document should walk you through, step-by-step, how to set-up Sacred Gold &
the Egglocke settings in order to play along during the LP!
1-Desmume- this is the emulator used to play the
AP Calculus Section 6.7
Rectilinear Motion Revisited using Integration
Page 416 #1 19 odd, and #35
Objective: SWBAT analyze motion problems from both an integration and
1. Finding Position and Velocity by Integration
Group Work Rubric
TA Name: _
Lab Day and Time: _
Room #: _
For each of the following categories, give a grade for each group member, including yourself as the first one. Give a
grade: A, B, C, D, or F. Please comment on how each person contributed to each
Oxidation States of Vanadium: Reduction of V5+ to V2+
This demo is available on the ACS video "Close-Up on Chemistry". Video is a nice
alternative to the waste from this demo (mercury and zinc). Plus the demo works very
well and is visible on the vid
Octet rule- atoms will lose, gain, or share electrons to achieve a noble gas
Lewis structure- a representation of a covalent bonding in which shared
electron pairs are shows either as dashes or as pairs of dots b
A compound is a substance composed of two or more elements combined in a
specific ratio and held together by chemical bonds.
-SECTION 5.2- LEWIS DOT SYMBOLS:
Lewis dot symbol- consists of the elements symbol surr
-SECTION 4.2: Elements were divided into categories based on the type of subshell
containing the outermost electrons.
Grouped into: the main group elements, noble gases, transition
elements/metals, lanthanides and the actinides.
SynTech Prelab Questions
1.) Indicate which of the following statements is true (T) and which is false (F).
a. An impurity raises the melting point of an organic compound.
b. A eutectic mixture has a sharp melting point, jus
SynTech Pre-lab Questions
1) List 4 characteristics of a good recrystallization solvent.
2) Why is the funnel and receiving flask pre-heated when we perform hot
3) What is meant by the term, oiling out,
SynTech Prelab Questions
1.) Steam distillation would be the procedure of choice (true or false) for separating
a. methanol, bp 65 C (760 torr), and water; methanol is completely
miscible with water.
Energy Changes in Chemical Reactions
10.10 Using Equation 10.1 and the sign conventions for q and w,
10.11 Using Equation 10.1 and the sign conventions for q and w,
10.12 Using Equation 10.1
Chemical Reactions in Aqueous Solution
Strategy: Strong electrolytes dissociate completely upon dissolving in water. The more ions in solution,
the stronger the electrolyte.
Compound AB: The compound dissociates partially into ions bu
a. N2 + O2 NO2
b. N2O5 N2O4 + O2
c. O3 O2
d. Cl2 + NaI I2 + NaCl
e. Mg + O2 MgO
(1) translate each compound name into the correct chemical formula;
(2) translate "and" into "+"; this applies to compound phras
Molecular Geometry and Bonding Theories
We determine the molecular geometry using the following sequence of steps:
draw Lewis count electron-
geometry based on
a. I and Cl should form a covalent compound; both elements are nonmetals. One possibility would be ICl,
b. Mg and F will form an ionic compound; Mg is a metal while F is a nonmetal. The substance will
Ionic and Covalent Compounds
Strategy: A Lewis dot symbol consists of the elements symbol surrounded by dots, where each dot
represents a valence electron. For the main group elements, the number of dots in the Lewis dot
symbol is the same a
Quantum Theory and the Electronic
Structure of Atoms
Use Equation 3.1 EK = mu to calculate the kinetic energy. Note that for units to cancel
EK in joules, the mass must be expressed in kilograms and the velocity in
Atoms and the Periodic Table
First, convert 1 cm to picometers.
= 1 1010 pm
(1 1010 pm)
1 Ar atom
2 102 pm
= 5 107 Ar atoms
Note that you are given information to set up the conversion factor relating me
Chemistry: The Science of Change
a. Hypothesis This statement is an opinion.
b. Law Newtons Law of Gravitation.
c. Theory Atomic Theory.
a. Law Newtons 2nd Law of Motion.
b. Theory Big Bang Theory.
c. Hypothesis It may be possible but we
Is this you?
You study for the exam.
You walk in feeling confident.
You take the exam feeling confident.
You go and check your score and it is lower than you ever expected even as you walked out of the room.
This is common and when this happens there are
When I am ready for the final exam, I should be able to:
Define and utilize the scientific method
Distinguish between phase of matter
Distinguish between a homogeneous mixture, a heterogeneous mixture and a pure substance
Distinguish between chemical and