Observations of Chemical and Physical
Hands-On Labs, Inc.
Lab Report Assistant.
Exercise 1: Observations of a Chemical Change
Data Table 1. Chemical Reactions.
Anions, Cations, and Ionic Reactions
Hands-On Labs, Inc.
Lab Report Assistant
This document is not meant to be a substitute for a formal laboratory report. The Lab Report
Assistant is simply a summary of the experiments questions, di
EXAM 1 PRACTICE
1. The statement, "In a chemical reaction, matter is neither created nor destroyed" is called
A) A Law
B) A hypothesis
E) An Observation
C) the Scientific Method.
2. Identify a liquid.
A) definite volume and d
CHATTANOOGA STATE COMMUNITY COLLEGE
General Chemistry I CHEM 1110-02 (4 credit hours)
Monday and Wednesday 12:30 1:45 PM, Omni 136
Dr. Bornface Gunsaru
Omni F12 (in the main Math & Science office), 423-697-3229, use eLearn fo
of the Elements
Chemistry 1010/1110/1120, Dr. Bean
This material is designed to supplement your textbook. You should begin learning this material now.
Names and Symbols of Elements
All matter is composed of elements. Because of their importance in any
Dr. Bean, Nomenclature
For each of the following, give either the name or the formula, whichever is not given. Make sure I can tell the difference
between your subscripts and superscripts!
Greenhouse gases o Greenhouse gases capable of absorbing and reemitting infrared radiation CO2 and H2O always present from living organic systems
Global Warming o Evidence is gathered from ice cores
H and 2H ratios vary with temperature
1. Carbon monoxide a. Composition of atmosphere Inhale N2 = 78% O2 = 21% Ar = 9% Other 2. Ozone a. Affects lungs i. Respiratory problems ii. Rash may develop 3. Oxides of nitrogen and sulpher a. Oxides i. Respiratory problems ii. Headaches 4. Particu
I. Chemistry a. That experimental science. II. Matter a. Has a mass, occupies space b. Heterogeneous i. Beef stew c. Homogeneous d. Atomic theory i. Atom is the fundamental element of matter ii. Proposed by Dawson, reformed with time iii. Atoms of th
I. Lewis Structures of Covalent Molecules a. A covalent bond is a shared pair of electrons i. Hydrogen ii. Fluorine iii. Hydrogen fluoride iv. Chlorite ion see worksheet b. Counting valence electrons i. See class notes Lewis Structure c. Multiple B
I. Bond Energy a. The amount of energy required to break a covalent bond and form separate atoms i. Br-Br + bond energy Br + Br b. The amount of energy released when two atoms combine to form a covalent bond c. See table 4.2 (p. 182) II. The Reactio
Acid o Sour o Generates hydrogen ions Branches of Chemistry o Organic Carbon-based Methane (CH o Inorganic Non-carbon compounds Sulfur, oxygen, nitrogen, etc. o Physical o Radioactive NO3-1 Nitrate NO2-1 Nitrite N Nitride Halogen Family -1 Cl C