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Hydrogen

water

Subject: 
Biology
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Chemistry
Inorganic solvents
Oxides
Supramolecular chemistry
Physical chemistry
Chemical bonding
Properties of water
water
Solution
Micelle
Hydrogen bond
Hydrogen

1 LECTURE 2: Water Hydrogen oxide Dihydrogen monoxide Hydrogen hydroxide Course outline - Water ? Structure of water ? Solvent Properties ? pH properties ? Temp. Regulation ? Heat capacity ? Heat of fusion ? Heat of vapourization ? Surface Tension ? Capillarity BL10J HALL 2006 2 Objectives ? At the end of this lesson you should be able to: ? Describe the structure of the water molecule ? Describe how water molecules are affected by ? pH, Temperature, Surface tension, Capillarity ? Explain the properties of water that make it an effective solvent. BL10J HALL 2006 3 BL10J HALL 2006 4 Water ? Abundant on earth. ? Covers 3/4 of the earth?s surface ? 70% of our body weight. ? Makes life possible.

Campbell Biology Chapter 2 Study Guide

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Biology
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Chemistry
Chemical bonding
Chemical bond
Valence electron
molecule
electron
Covalent bond
Ionic bond
Chemical reaction
Hydrogen
ion
Helium

Name Period Chapter 2: The Chemical Context of Life This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you to review on your own, the questions that follow should help you focus on the most important points. Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds Define and give an example of the following terms: matter: element: compound: What four elements make up 96% of all living matter? What is the difference between an essential element and a trace element? essential element: trace element: Concept 2.2 An element?s properties depend on the structure of its atoms

AP BIO

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Biology
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Chemistry
Chemical bonding
Chemical elements
Nonmetals
Inorganic solvents
Oxides
Properties of water
water
Chemical bond
Hydrogen
molecule
Heat capacity

Chapters 1, 2, &3. AP Biology Summarize Themes connect the concepts of biology Evolution is the core thing Accounts for the unity and diversity of life Charles Darwin and Theory of natural selection Taxonomy > classification of organisms Domains: Bacteria, Archaea, and Eukarya 6 Kingdoms: Plant, Animal, Fungi, Protista, Bacteria, Archaebacteria New properties emerge at each level in the biological hierarchy O>P>C>E>B Atom > Molecule > Organelle > Cell > Tissue > Organ > Organ System > O Organisms interact with their environments, exchanging matter and energy Energy > Producers > Consumers Structure and Function are correlated at all levels of biological organization Form Suits function Cells are an organism?s basic units of function Prokaryotes vs. Eukaryotes

Ch 2: Environmental systems

Subject: 
Environmental Science
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Chemistry
Physics
Chemical bond
Chemical reaction
Hydrogen bond
molecule
Hydrogen
Properties of water
matter
Radiation
Chemical substance
ion

Pauline Lee APES Chapter 2: Environmental Systems A Lake of Salt Water, Dust Storms, and Endangered Species Mono Lake- terminal lake water flows into it, but doesn?t flow out a. Picks up salt and other minerals- deposited in the lake b. Evaporation- buildup of salt concentration c. Mono brine shrimp/larvae of Mono Lake alkali fly i. Consume microscopic algae Los Angeles Department of Water and Power reduce amount of water diverted and allow the lake to refill to about 2/3rds of historical depth Earth is a Single Interconnected System Large system may contain many smaller systems within it Fisheries of the North Atlantic a. Physiologist- study how codfish survive in freezing waters i. Fish and internal organs system being studied

Holt Biology Chapter 2 Section 1

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Biology
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Chemistry
Chemical bonding
Chemical bond
ion
Covalent bond
Chemical polarity
electron
molecule
Atom
Energy level
Hydrogen
Valence electron
Technology

Unit 1 Chapter 2: Chemistry of Life Section 1: Nature of Matter Atom Smallest unit of matter that can?t be broken down by chemical means Protons, Neutrons, Electrons Electron cloud Region around nucleus that electrons can occupy at any time Stable atoms usually have no charge 1 electron for every 1 proton Elements Pure substance made of one kind of atom Differ in number of protons Ex. Carbon-12 (Carbon has 6 protons) 12-6=6 Carbon-12 has 6 neutrons Compound Substance made of joined atoms of 2 or more different elements Chemical formula identifies what is in compound and those elements? proportions Ex. NaCl 1 Sodium for every 1 Chlorine Covalent Bonds Two or more atoms share electrons to form a molecule Molecule Group of atoms held together by covalent bonds

Bob Jones PPT Notes -- Chapter 5c

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Chemistry
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Chemistry
Periodic Table
matter
Metalloid
Metal
Chemical element
Alkaline earth metal
Noble gas
Nonmetal
Hydrogen
Boron group
Alkali metal

Elemental & Families Properties Their 1 Hydrogen: A Family of Its Own Why is it by itself? Can lose or gain one electron Discovered by Cavendish Physical properties (PP) Chemical properties (CP) Uses Hydrogen: A Family of Its Own Physical properties (PP) colorless, odorless, tasteless gas Chemical properties (CP) active, like a Group 1A metal or a Group 7A nonmetal diatomic can react with metals to form metallic hydrides Hydrogen: A Family of Its Own Uses ammonia fuel cells ?rocket? fuel Hydrogen: A Family of Its Own Supposed to have initially formed H & He Big Bang 6 Group 1: The Alkali Metal Family Physical properties light, soft, shiny, conduct electricity well 7 Chemical properties most reactive metals eager to lose lone outer e? never occur naturally

Campbell Biology Test Bank Chapter 2

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Biology
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Chemistry
Chemical bonding
Chemical bond
Valence electron
Orbital hybridisation
electron
Hydrogen bond
molecule
Hydrogen
Covalent bond
Chemical polarity
Proton
Technology

Campbell's Biology, 9e (Reece et al.) Chapter 2 The Chemical Context of Life This chapter presents basic chemical principles for understanding the chemical context of living organisms, from atomic structure to the nature of chemical bonds and an introduction to chemical equilibrium. These questions focus on elements most important to life or the study of life, including the elements that comprise organic molecules and important trace elements. Some isotopes are important in geologic dating and in biological tracer studies. How elements participate in forming different types of chemical bonds is essential to mastering subsequent topics on the behavior and properties of biological molecules, structures, and energy metabolism. Multiple-Choice Questions

Chemistry The central science

Subject: 
Chemistry
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Chemistry
Periodic Table
Alkaline earth metal
Halogen
Nonmetal
Base
Nitric acid
Properties of water
Hydride
Hydrogen
Metal
Chemical element

Electron affinity: Cl(g) + e? Cl?(g) ?E = ?349 kJ/mol Ionization energy: Cl(g) Cl+(g ) + e? ?E = 1251 kJ/mol Substance to be an acid Disolve in water to form acidic solution or React with a base Metals Form cations in aq M M2+ + 2e? Low I1 Metals + non-metals salt (ionic compound) Metal oxides basic: Metal oxides + H20 metal hydroxide (OH-) (not all) Metal + O2 metal O2- (Ionic Solid) Acid + metal salt (aq) + H2 (g) Acid + metal OH- salt (aq/s) + H2O (l) Acid + metal O2- salt (aq/s) + H2O (l) Acid + metal HCO2-3 salt (aq/s) + CO2 (g) + H2O (l) Acid + metal HCO-2 salt (aq/s) + CO2 (g) + H2O (l) Acid + metal S2- salt (aq/s) + SO2 (g) + H2O (l) Acids + Metals Soluble Water Acid Product NiO (clear) No HNO3 (clear) Ni(NO3)2 (Green)

CHEM 1A midterm 1

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Chemistry
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Chemistry
DuPont
Synthetic fibers
Reducing agents
Hydrogen bond
Supramolecular chemistry
Kevlar
Properties of water
Hydrogen
Formamide
Formic acid
Nylon
Technology

Chemistry 1A, Fall 2011 Midterm Exam #1 September 20, 2011 (90 min, closed book) Name:__________________________________ SID:___________________________________ GSI Name:________________ ? The test consists of 4 short answer questions and 18 multiple choice questions. ? Put your written answers in the boxes provided. Answers outside the boxes may not be considered in grading. ? Write your name on every page of the exam. Question Page Points Score Multiple Choice (1-18) 2-7 55 Formic acid Short Answer 3 8 Hydrogen Storage Short Answer 3 4 Capsaicin Short Answer 5 4 Rubber Short Answer 7 4 Total 75 Useful Equations and Constants: PV = nRT

Cambell Biology 7th edition Chemistry notes

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Biology
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Chemistry
Physics
Chemical bonding
Chemical bond
ion
electron
Atom
molecule
Covalent bond
Hydrogen bond
Hydrogen
Proton
Technology

The Chemical Basis of Life ?We are stardust? nasa.gov Students should be able to: Define: element, atom and molecule Name the components of atoms and their physical arrangements. Draw a diagram of an atom, given the atomic number. Distinguish between the types of chemical bonds. Element: a substance that cannot be broken down to other substancesPeriodic Table: organizational chart of all the elements http://www.periodictable.com/ Table 2.1 5 Table 2.1 Elements In the Human Body ATOM: from Greek atomos, ?unable to be cut? Atomic Structure An atom is the smallest unit of matter that still retains the properties of an element. Three subatomic particles in atoms are relevant to our discussion of the properties of elements. Protons are positively charged.

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