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9/19 Warm Up

9/19 Warm Up

9/19 Warm Up. Question #2: Copy and answer the following: “Donuts” PC = (list 2 physical changes) CC = (list 2 chemical change) Evidences = (list 2 evidences of a chemical rxn ). Announcements. Friday HW: Go to blog and watch MOTHBALL PRE LAB Check survey when completed

By elysia
(123 views)

Periodic Properties

Periodic Properties

Periodic Properties. You learned how to write the electron configurations for ions. Just remember that the valence electrons get added to or removed first! So you always add to or remove from the highest principal energy level, or n value. Write the electron configuration for Cl - , Mn 2+.

By eros
(113 views)

A Quick History of Chemistry

A Quick History of Chemistry

A Quick History of Chemistry. With thanks to Isaac Asimov 2,400 years in 42 slides!. As easy as LMN. No one knows where the Latin word “ elementum ” comes from. We get our word ELEMENT from it.

By fausta
(143 views)

Unit 1

Unit 1

Unit 1. Levels of Organization Characteristics of Life Requirements of Organisms Homeostasis Relative Positions Body Sections Body Region Adjectives. Levels of Organization (small to large). Subatomic particles (ex) proton Atom (ex) hydrogen atom Molecule (ex) water molecule

By jane
(115 views)

Energetics

Energetics

Energetics. IB Topics 5 PART 1: Heat and Calorimetry. Above: thermit rxn. Energy: a measure of the ability to do work. Work: to move an object against an opposing force. Energy (J) = Force (N) x Distance (m)

By euclid
(112 views)

less dangerous

less dangerous

Biological Effects of Radiation. nonionizing radiation : bumps e – to higher energy levels or heats molecules; . less dangerous. ionizing radiation : knocks e – out of molecules; . more dangerous. a , b , g , x-rays, high-frequency UV. -- e.g., .

By adonica
(137 views)

Electrochemistry

Electrochemistry

Chapter 21. Electrochemistry. Electrochemistry. the study of the production of electricity during chemical rxns and the changes produced by electrical current. Electrochemical reactions are oxidation-reduction reactions. Oilrig: oxidation loss of electrons, reduction gaining of electrons

By mira
(104 views)

LAB DEMO ACTIVITIES

LAB DEMO ACTIVITIES

LAB DEMO ACTIVITIES. Aim: To find out the different signs of a chemical change. . 1. Blue Bottle 2. Foam Column Solid Reaction Flame Tests Burning Magnesium Carbon Pillar. Skills Focus: Making Observations Qualitative vs. Quantitative.

By luisa
(113 views)

Warm Up 5.4: Determine if a Chemical or Physical Change

Warm Up 5.4: Determine if a Chemical or Physical Change

Warm Up 5.4: Determine if a Chemical or Physical Change. P. C. C. P. C. P. P. C. P. Physical change effects…. Size Shape Color State of matter Additionally…. Reversible No energy. Chemical Change effects…. Composition Additionally… Energy involved New substance formed

By ardara
(143 views)

Redox Reactions

Redox Reactions

Redox Reactions. Chapter 20. Section 20.1. Oxidation And Reduction. Redox Reactions. A chemical rxn in which electrons are transferred from one atom to another is called an oxidation-reduction reaction , or redox rxn .

By alton
(129 views)

Types of Chemical Rxns

Types of Chemical Rxns

Types of Chemical Rxns. Synthesis: A + B  AB 2H 2 + O 2  2H 2 O Decomposition: AB  A + B 2H 2 O 2  2H 2 O + O 2 Single Replacement: A + BC  B + AC 2Al + 3CuCl 2  2AlCl 3 + 3Cu Double Replacement: AC + BD  AD + BC 2NaI + Pb (NO 3 ) 2  PbI 2 + 2NaNO 3

By katima
(252 views)

Topic: Redox

Topic: Redox

Topic: Redox. Aim: What are electrochemical cells? Do Now: Which of the following ions is most easily reduced? Li+ 2) K+ 3) Ca 2+ 4) Na+ HW:. Types of Cells. Electrochemical Cells. Practical uses for redox reactions Involve: Chemical rxns Flow of e- 2 types:

By viho
(187 views)

Human Body

Human Body

Human Body. Chapter 2 Basic Chemistry. Chemistry in the Human Body. The food that we eat is composed of chemicals The medicines that we take are composed of chemicals The entire body is composed of chemicals Chemical rxns underlie all body processes. Concepts of Matter and Energy.

By keiji
(151 views)

Enzymes

Enzymes

Enzymes. Chemical Reactions. Chemical Rxns. How do they work?. Animations. http://www.lpscience.fatcow.com/jwanamaker/animations/Enzyme%20activity.html. Inhibitors.

By ruby
(165 views)

Chemistry

Chemistry

Composition of Matter Energy Solutions. Chemistry . Composition of Matter. Why discuss chemistry in biology class? The structure and function of all living things are governed by the laws of chemistry. Matter. Makes up everything in the universe Anything that occupies space and has mass

By cleave
(162 views)


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