8. Energy conversion practice
Tuesday, September 16, 2014
Perform the following calculations. Show all your work.
1. Convert 115 Calories to calories
-Type your answers in Red
115000 cal 1 Cal
1 cal = 4.184J =
Classifying Electrolytes Electrolytes are substances which, when dissolved in water, break up into cations (pluscharged ions) and anions (minus-charged ions). We say they ionize. Strong electrolytes ionize completely (100%), while weak electrolytes ionize
Chapter 4: Reactions in Aqueous Solutions Personal Notes
March 15, 2010 I spent about 4 hours in a study session with Patrick, who is also from our Chemistry class going over some review from Chapters 1-3, and discussing/answering questions 1-26 of the Pr
1.-10 These are the questions in the practice questions I sent you! A= ture, B=False 1. Matter is anything that has mass and occupies space? True False A 2. When applying the scientific method, it is important to avoid any form of hypothesis.
Chapter 10 Gases
Characteristics of Gases
Unlike liquids and solids, gases expand spontaneously to fill their containers; are highly compressible; have extremely low densities; have indefinite shape; can diffuse and mix rapidly with other gases in the sa
Chapter 9 Molecular Geometries and Bonding Theories
Review: Writing Lewis Structures
1. Find the sum of valence electrons of all atoms in the polyatomic ion or molecule.
If it is an anion, add one electron for each negative charge. If it is a cation, s
Chapter 8 Concepts of Chemical Bonding
Three basic types of bonds:
Electrostatic attraction between ions
Sharing of electrons
Metal atoms bonded to several other atoms
Energetics of Ionic Bonding
As we saw i
Periodic Properties of the Elements
Development of Periodic Table
Elements in the same group generally have similar chemical properties. Properties are not identical, however.
Development of Periodic Table
Dmitri Mendeleev and Lothar Meyer (~
Chapter 6: Electronic Structure of Atoms
To understand the electronic structure of atoms, one must understand the nature of electromagnetic radiation. The distance between corresponding points on adjacent waves is the wavelength ().
Chapter 5 Thermochemistry
Thermochemistry is an aspect of thermodynamics involving the study of the relationships between chemical reactions and energy changes involving heat.
Work Energy used to cause an object that has mass to move.
Heat Energy us
Chapter Four: Aqueous Reactions and Solution Stoichiometry
Ionic Compounds in Aqueous Solution Molarity Stoichiometry of Reactions in Solution Chemical Analysis by Titration and Gravimetric Analysis
Solution: A homogeneous mixture of two or mo
Chapter 3: Stoichiometry
Stoichiometry is the study of the quantitative relationships in substances and their reactions
Chemical equations The mole and molar mass Chemical formulas Mass relationships in equations Limiting reactant
Chapter 2: Atoms, Molecules, and Ions
Historical Origins of Chemistry
c600 BCs c550 BC Thales. Basic stuff of nature is water Anaximenes. Primordial substance: air
mid-500 BCs Pythagoras. 5 elements: earth, water, fire, air, ether mid-400 BCs Zeno. All ma
Chapter One Introduction: Matter and Measurement
Classifications and Properties of Matter Units of Measurement Uncertainty in Measurement Dimensional Analysis
The study of matter and the changes it undergoes.