INTRODUCTION TO pH USING HOUSEHOLD ITEMS.BACKGROUND INFORMATION: source.The concentration of hydrogen ions in a solution is very important for living things. This is because; since the hydrogen ions are positively charged they alter the charge environment
Gateway 125, 126, 130 Fall 2006 Studio 5c p1.Studio 5c 10/06/06: Hot and Cold Packs.Concepts: temperature, Fahrenheit, Celsius, Kelvin, lattice energy, enthalpy of solution, Hess s law, specific heat capacity
Qualitative Analysis.The purpose of qualitative analysis is to determine what substances are present in detectable amounts in a sample. This experiment has two parts. In the first part, you will analyze an unknown solution for the presence of seven common
Name Class Date.8.4 Polar Bonds and Molecules.A chemical bond s character is related to each atom s attraction for the electrons in the bond.Lesson Summary.Bond Polarity In a polar covalent bond, the electrons are shared unequally
Building Monomers of Macromolecules.The term macromolecule by definition implies large molecule . In the context of biochemistry, the term may be applied to the four large molecules that make up organisms nucleic acids, proteins, carbohydrates, and lipids
Unit 5 Test Review Answers.For full credit on your homework, quiz, or test, you must have ALL of the following.Lewis structure.Molecular geometry (the name of the shape).List of all IMF s for the molecule(s)
MOLE RELATIONSHIP IN A CHEMICAL REACTION.The Law of Conservation of Matter states that matter is neither created nor destroyed in a chemical reaction. In other words, the total mass of the reactants must equal the total mass of the products in a chemical
Lab 1.3 Carbon-14 Half-life and Radioactive Dating.Background: The nuclei of unstable atoms disintegrate by decay spontaneously, emitting alpha or beta particles and gamma radiation. Types of atoms that undergo this process are called radioactive isotopes
Report to the Executive Committee.Virginia Section of the American Chemical Society.Women Chemists Committee.The Virginia Section Women Chemists Committee holds activities to align with the mission and goals of the national WCC. From the ACS website
Science Curriculum Framework.Course Title: Chemistry.Course/Unit Credit: 1.Course Number: 421000.Teacher Licensure: Please refer to the Course Code Management System ( the most current licensure codes
Exam 2 Learning Objectives.Know the factors that affect enzyme activity.Describe substrate specificity (geometry, charge, polar, nonpolar, stereospecific).Know how enzymes affect activation energy.Understand mechanisms of.Acid-base catalysis.Covalent catalysis.Metal ion catalysis
1. (a) Consider the equilibrium: HA (aq) H+ (aq) + A- (aq) In terms of LeChatelier s principle, explain the effect of the presence of a salt of A- on the ionization of HA. (b) Give an example of a salt that can decrease the ionization of NH3 in solution
The Periodic Table of Elements Project.Advanced Chemistry 11.Mrs. Daugherty.300 Point Test Grade.The Periodic Table of Elements Project.This is a major project that should be taken very seriously by all students. Students are strongly encouraged to work
ChE 170L Laboratory.Exercise 11. Separation of Amino Acids by Ion Exchange Chromatography.In this experiment we will separate a mixture of three amino acids on a strong acid ion-exchange resin. The amino acids are separated by elution with sodium citrate
Study Guide UNIT 6 Quiz History of the Periodic Table & Trends ANSWER KEY.Classifying the Elements.The elements can be classified in two ways.r Metals, non-metals, and semi-metals.r Chemical families (groups).Label the following on your periodic tables.r Metals, Non-metals, Metalloids (Semi-Metals)
Experiment #2: Reactions and Stereochemistry of Carbohydrates.Carbohydrates (saccharides, sugars) function as sources of energy as well as structural materials for cells. Carbohydrates contain both alcohol and carbonyl (aldehyde or ketone) groups. Because