'Polar molecule' diaporamas de présentation

Biochemistry. Life is all about bags of biochemical reactions Atoms, Molecules and Chemical Bonds The Chemistry of Water The Chemistry of Carbon Carbohydrates Lipids Nucleic Acids Protein. The Chemistry of Life.

June 2010 Regents Exam Part A, B1 and B2 Questions. http://www.nysedregents.org/chemistry/. http://www.kentchemistry.com/RegentsExams/regentsexams.htm (very helpful site for chemistry regents practice; Mr. Kent’s chemistry website).

Different Types of Bonds. Electronegativity Ionic / Polar Covalent / Nonpolar Covalent Metallic Bonding. Electronegativity. Electronegativity is defined as the ability of an atom to attract electron density to itself when joined to another atom in a chemical bond.

Intermolecular Attractions. Types of Intermolecular Attractions. There are three types of intermolecular attractions: London Forces Dipole-dipole Hydrogen bonds. Polarity of molecules.

Chapter 11. States of Matter. Physical states. Property differences among Physical states. Compressibility: measure of volume change resulting from pressure change. Thermal Expansion: Measure of volume change resulting from temperature change . The KMT of Matter:.

ACTIVE SITE: Place on an enzyme where the substrate attaches POLAR MOLECULE: Molecule with an “uneven pattern” of electric charges; More + on one side/more – on the other

جامعة النجاح الوطنية كلية العلوم قسم الفيزياء / فرعي إلكترونيات. 2013. Presented by : Anhar Hamadneh TO : Dr. Issam Al Ashqar. Microwave. MICROWAVE IN ,,, COMMUNICATION SYSTEMS . RADAR SYSTEMS . MICROWAVE OVENS ( IF IS FREE TIME ). Microwaves Definition.

IB DP1 Chemistry Bonding. What makes atoms join together to make compounds?. Topic 4: Bonding (12.5 hours). 4.1 Ionic bonding 4.1.1 Describe the ionic bond as the electrostatic attraction between oppositely charged ions. 4.1.2 Describe how ions can be formed as a result of electron transfer.

Section 5.4—Polarity of Molecules. Electronegativity. The pull an atom has for the electrons it shares with another atom in a bond. Electronegativity is a periodic trend

Polarity of Bonds and Molecules. Mrs. Huelin Chemistry April 24, 2012. Polarity. of bonds … HCl H 2 O. of molecules … H 2 O CO 2. For each molecule, draw the Lewis structure, predict the shape and bond angle, and identify as polar or nonpolar . . Br 2 HCN C 2 H 2 NH 4 +. H 2 S

Intermolecular Forces. What is the difference?. What is the difference between: INTER INTRA Inter-molecular are forces between molecules and intra are forces within a molecule. These are the forces that hold our world together!. Intermolecular Forces (IMF).

Chapter 16 Solutions. Solution. Solution is a homogenous mixture . A solution can exist in any of the three states: Solid solution: steel, brass, bronze Liquid solution: alcohol in water, sugar water. Gaseous solution: air, any mixture of gases . Solution Terminology. Solute

Do Now: Exam Question . Complete the exam question on the sheets provided. 10 minutes to answer the question (10 marks) 10 minutes to mark your answers. . Emulsions . To be able to: Recall how emulsifying agents can help oil and water mixtures to remain mixed (B/A)

Introduction to Cell & Molecular Biology, BIOL-2120. LABORATORY SESSIONS WILL MEET THIS WEEK RECITATION SECTIONS WILL NOT MEET THIS WEEK (They begin next week). Welcome to BIOL 2120: Introduction to Cell & Molecular Biology. George Plopper , Ph.D. Department of Biology.

Chapter 2: Chemicals of Life. A. Bonding . 1. Covalent Bonds 2 or more atoms share electrons to form a molecule No net charge due to equal number of + and – Ex. water. Properties of Water. Covalent bonding vs. Hydrogen bonding. Hydrogen Bond. Covalent Bond. A. Bonding. 2. Hydrogen Bonds

Molecular Structure of Biological Systems ( Inter-molecular and Intra-molecular Forces). Physical properties of biological systems on the molecular level. Two kinds of physical behavior meet on the molecular level of biological structures :

Molecular Polarity. A dipole is anything with a positive end and a negative end. Another word for dipole is polar . A bond is a dipole (polar) if it connects different atoms.

SURFACE CHEMISTRY. Interaction of Water and Clay Minerals. A. Origins of Charge Deficiencies. Permanent pH-dependent. (due to isomorphous substitution). (variable, due to edges). A. Origins of Charge Deficiencies. Imperfections in the crystal lattice - Isomorphous substitution .

Materials, structures, and defying gravity. How materials work. Compression Tension Bending Torsion. Millau viaduct, France (2005) Cable-stayed design, 2.5 Km long, 340m high. Great pyramid, Egypt (2560BC) Height: 139m. Lincoln cathedral, England (1300) Height: 160m.

Intermolecular Forces. Love & Hate in the Molecular Realm. If I put 2 molecules into a sealed flask, what could happen?. They ignore each other. They LOVE each other – they’re attracted to each other They HATE each other – they repel each other.