1. Which of the following are examples of physical change?
A) sugar is dissolved in water
B) coffee is brewed
C) dry ice sublimes
D ice (solid water):.:m~e:l.:ts~-:-", _
AI 0 t ese are exam les of hysical change.
Choose the p
Chemistry 110: Preparatory Chemistry
I. Multiple Choice (3 points each)
Identify the choice that best completes the statement or answers the question.
1. Which of the following does not describe the solid state?
University of California, Davis
1. Which of the following generally indicates the possibility of a chemical change?
Formation of a solid
Formation of a gas
Absorption or release of hea
CHAPTER 2: MATTER & ENERGY
Representations of Matter: Models & Symbols
a. Macroscopic, microscopic, particulate, model, chemical symbol
States of Matter
a. Solid, liquid, gas
i. Matter is composed of small particles (molecules). The
Workload WLD 41C, UC Davis
Chem 110, Sacramento City College (SCC)
Instructor: D. Chubbic
Phone: 800-486-8156 (email is preferable to voicemail)
Email: [email protected]
Example Email Subject Line: 41C 3:10 Debbie Ngu
Write the name of I2O5
Write the formula of nitrogen trifluoride.
What is the the formula of sodium ion?
What is the name and formula of the ion formed from a sulfur atom?
What is the formula of copper(
YET TO COME
The Quantum Concept
clearly defined orbits
with set allowable en
2011 Fall, Professor Chubbic
The actual midterm will have about 50 multiple choice questions. For the actual midterm, you will
be given a periodic table and data like the one attached below. The midterm will cover the same
The coefficients in a chemical equation give us
the conversion factors to get from the number
of particles of one substance, grouped into moles,
to the amount of another
substance in a chemical change.
(called the mole ratio)
A2 + 3 B2
How many m
Significant Figures and Scientific Notation
Any measurement is inaccurate to some degree. The inaccuracy stems from several factors - the
precision of the measuring device used, errors by the person doing the measurement, a faulty
Solving Problems Involving Units
(Dimensional Analysis; Unit Cancellation)
STEP 1: Draw a horizontal line across the page and place two vertical lines so that
you create three separate regions on the grid.
STEP 2: The units that are wanted are placed on t
+1 charge, mass of 1 amu
no charge, mass of 1 amu
-1 charge, mass approx. zero amu
(to illustrate: 1/1,836 mass of proton)
An isotope is identified by its mass number, A
Every atom conta
Familiar Characteristics of Gases
Kinetic Theory of Gases & Ideal Gas Model
1. Gases consist of particles moving at any given instant
in straight lines.
1. Gases may be compressed.
2. Gases expand to fill their containers uniformly.
2. Molecules collide w
Exponential numbers are a convenient way of writing numbers that are very large or very
small, a situation that occurs frequently in scientific measurements.
For numbers larger than 1:
Chemistry 110/Workload 41C: Preparatory Chemistry Fall 2013
Sacramento City College/UC Davis
Dr. Vahid Eskandari,
Office Hour Time and Location: Mondays 11:30-12:30 pm Chemistry Building 163A
University of California, Davis
1. List all strong acids, and at least 4 weak acids.
2. Solution of ionic compounds
Write the major species when NaCl(aq) is dissolved in water >
3. Write the prod
I. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) A ﬁctional element called Saccityium has two naturally occurring isotopes with the natural abundances shown here:
amu or 11 Natural A