A titration is a process used to determine the volume of a solution that is needed to react with a
given amount of another substance. In this experiment, your goal is to determine the molar
concentration of two acid solution
1. 25 meters is _ millimeters.
2. 25 meters is _kilometers.
3. 25 meters is _centimeters.
4. 25 m
ELEMENTS, COMPOUNDS, MIXTURES
Label as an Element, Compound, Substance, Homogeneous mixture, Heterogeneous mixture
2. Salt water
4. Hardware(nuts and bolts)
8. Sugar water
11.Oil and wat
Density - Messing around with a floating egg
Does an egg float in hot or cold water?
Can you change the density of water?
What can you add to water to change the density? How do you know?
Can you make an egg float in a water solution? What is it?
Make a 5
Directions: First write the electron configuration: long and short. Then fill in the orbit diagram. Next
complete Bohrs Model. Finally, draw the Lewis Dot Structure.
a. Electron configuration _short_
The Floating Egg Problem
You are to determine the density (in grams per milliliter) of the salt solution to just float an
The goal of the experiment(s) we will be doing is to become directly involved in scientific
Name _ Hr _
Chem Comm A
Elements and Equations Video Qz
1. What are reactants?
2. What are products?
3. Law of _ of Mass, states that atoms are not _ or
_ in an equation.
4. The _ must have the same number of atoms as the _.
5. Balance the equations:
Physical and Chemical Changes
Is it a Physical or a Chemical Change?
1. glass breaking
2. hammering wood together to build a playhouse
3. a rusting bicycle
4. melting butter for popcorn
5. separating sand from gravel
6. spoiling food
7. mixing lemo
Balancing Equations Quiz
Directions: Place the proper coefficient on each blank so that the equation is balanced.
Below each side of the equation (arrow) show how many atoms of each element are
_H2 + _O2 _H2O
H = _
Lab Report Rubric Foul Water Lab
Must be attached as cover to receive credit on report
Report Format (see diagram) 20 points
_ (4 pts) Report has appropriate title
_ (4 pts) Author name and date under title
_ (4 pts) Lab partners listed (First and Last na
One Concept at a Time
Organized and Engaging
Worksheets for High School Chemistry
Atomic Structure Worksheets
One Concept at a Time
Worksheets for High School Chemistry from our
PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES
1. observed with senses
2. determined without destroying matter
1. indicates how a substance
reacts with something else
2. matter will be changed into a new
Renewable Versus Non-Renewable Resources
1) Which of the following is a readily renewable resource?
d) all of the above
e) a and c, but not b
2) Water is a renewable resource all over the world.
3) Which of
Most Valuable Element
What do you think is the Most Valuable Element?
What is Valued? Most Valuable for what?
Who Values It?
What impact has it had to be valued?
Create a MVE card.
Front: Pictures, names, etc. (sell your element!) (10 pts)
Reduce, Reuse, and Recycle
1. True or False: The worlds population is growing so fast that
resources are becoming limited.
2. True or False: Reusing means processing used materials in
order to make them suitable for other uses.
3. Why conserve resources?
The Gas Laws
I. Gas laws- simple mathematical relationships between the volume, temperature,
pressure, and amount of a gas
II. Boyles Law: Pressure-Volume Relationship
A. Robert Boyle discovered doubling the pressure reduces volume by
Introduction to Stoichiometry
A. Composition Stoichiometry- deals with mass relationships of elements
1. Multiply/ dividing by molar mass to get the mass or moles
2. ex. 2 moles of carbon = 24 grams
B. Reaction Stoichiometry
Deviations of real gases from ideal behavior
A. Real gas- does not behave completely according to the assumptions of the kineticmolecular theory
B. Johannes van der Waals
1. accounted for this deviation by stating particles of real gases occupt space and
Physical characteristics of gases
The Kinetic-Molecular Theory of Matter
Kinetic-molecular theory- based on the idea that particles of matter are
always in motion
A. Explains properties of solids, liquids, and gases in terms of energy of particles and
A. barometer- this is a device used to measure atmospheric pressure
1. First introduced by Evangelista Torricelli in early 1600s
a. Torricelli wondered why water pumps only raised water up to 34 feet
b. He did experiments involving putt
Limiting Reactants and Percent Yield
I. Limiting Reactant
A. reactant that limits the amount of other reactants that can combine and limits
the formation of the product
C. Divide the mass of each reactant with the number of molar masses
B. Ex. 2H2 + O2 2H
Kinetic Molecular Theory and the Nature of Gases
A. Applies only to ideal gases (do not actually exist)
B. Gases will behave nearly ideally if pressure is not very high and temperature isnt
1. Gases have no definite volume; they fill
High Density and Incompressibility
Higher density results in tighter compacted particles
Least dense solid hydrogen solid
Solids are less compressible incompressible
Particles are arranged randomly and do not change positions constantly
Low Rate o
Components of Solutions
Simplest type of solution sugar water solution
Solute substance dissolved in a solution
a. Component of solution that is a lesser quantity
b. Dissolved solute particles are too small to be seen
c. Stays mixed unless conditions
Glass make a distinctive group
Covalent molecular crystals: consists of covalently bonded molecules held
together by intermolecular forces. If the molecules are nonpolar weak
London dispersion forces. Polar covalent
Structure of Water
Number of linked molecules decreases with increasing temperature because
increase of kinetic energy make hydrogen bond formation more difficult
4-8 molecules per group in liquid water
Ice hexagonal arrangement
Empty account f
Properties of Liquids and the Kinetic-Molecular Theory
Kinetic-molecular theory theory based on the idea that particles of matter are
always in motion
Particles in liquid closer together and lower in kinetic energy than those in gas
Molar Heat of Fusion
Molar Heat of Fusion amount of heat energy required to melt one mole of solid
at its melting point
Heat absorbed increases potential energy as particles are pulled apart
Decrease in particle arrangement
Magnitude depends on at
Formation of Solids
Low energy- attractive forces pull particles into an orderly arrangement solid
Freezing physical change of a liquid to a solid by removal of heat, solidification
Properties of Solids and the Kinetic-Molecular Theory
Evaporation and Boiling
Vaporization process by which a liquid or solid changes to a gas
Evaporization (form of vaporization) process by which particles escape from the
surface of a nonboiling liquid and enter the gas state
Occurs because particles