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AP Chemistry MIDTERM review A

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Chemistry
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Chemical elements
Diatomic molecule
molecular geometry
Stereochemistry
Industrial gases
Isoelectronicity
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Boron
Chemistry
Chlorine

Which element is most commonly found as a negatively charged ion? Ne - 0 Li - +1 Al - +3 Cl - -1 Ca - +2 A 100 Which element is isoelectronic with Mg2+ Ne Li Al Cl Ca A 200 Isoelectronic elements have the same electron configurations ? that means they must have the same number of electrons Which element is found as a diatomic gas in its uncombined state? Ne Li Al Cl Ca A 300 You have memorized the diatomic gases: H, O, N, Cl, Br, I, F. Make a study card for these if you need to review and re-memorize! A 400 A 500
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Basic Chemistry Review (PreAP level)

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Chemistry
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Chemical bonding
Quantum chemistry
Chemical properties
Periodic Table
Atomic physics
Chemical bond
ion
Chemistry
Valence electron
Atom
Periodic trends
electron

1 THE MOST BASIC CHEMISTRY REVIEW This review is intended to remind you of the BASICS that you learned. It is NOT COMPLETE. CLASSIFYING MATTER elements, compounds, or mixtures PROPERTIES OF MATTER INTensive?a property that doesn?t depend on amount (ex- boiling point) Extensive?a property that does depend on amount (ex- mass or volume) density ? amount of matter in a given volume Density = mass volume units: g/cm3 for solids, g/mL for liquids density column Example A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? If the wood were cut into three pieces would it have the same density?

The History of the Atom - Notes

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Chemistry
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Nuclear physics
Baryons
atoms
Charge carriers
Chemistry
Proton
electron
Rutherford model
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Neutron
Alpha particle
Valence electron

The History of the Atom Chapter 5 Major Discoveries 1806: John Dalton Atomic theory 1896 Henri Becquerel Radioactivity 1897: JJ Thomson Discovered the Electron 1909: Robert Millikan Confirmed existence of Electrons, their mass and their negative charge 1910: Ernst Rutherford Nucleus has the protons and neutrons, rest is mostly empty space 1913: Neils Bohr Planetary model of the atom Dalton?s Atomic Theory Elements are made up of discrete units called atoms Atoms of each element are identical. Atoms of different elements are different. Compounds are formed when atoms combine. Each compound has a specific number and kinds of atom. Chemical reactions are rearrangement of atoms. Atoms are not created or destroyed. Becquerel and Radioactivity Discovered by accident

ap chem semester final

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Chemistry
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Quantum chemistry
Atomic physics
Molecular physics
Chemical bonding
Chemical properties
Valence electron
Ionization energy
Resonance
Chemistry
electron
ion
Chemical reaction

AP/IB Chem 1st Semester Exam Review Questions?????????????????? Multiple Choice: 1. When 12 grams of methane (CH4) is burned, the quantity of energy released is most nearly: Heat of combustion for CH4 is -891 KJ/mol. a)? 0.75 kJ?b)? 56 kJ?c)? 420 kJ?d)? 600 kJ?e)? 800 kJ 2.? The reaction of sodium bicarbonate with sulfuric acid is shown below.? 2 NaHCO3?? +?? H2SO4?? ??? Na2SO4?? +?? 2 H2O?? +?? 2 CO2???????? ?H? =? + 25 kJ/mol NaHCO3

Campbell9thEdChapter2ChemicalContextofLife

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Biology
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Chemical bonding
Chemical bond
Covalent bond
Valence electron
Valence
Ionic bonding
Chemistry
Lewis structure
Electronegativity
Atomic orbital
Hydrogen bond
ion

The Chemical Context of Life Chapter 2 Matter consists of chemical elements in pure form and in combinations called compounds Organisms are composed of matter Matter is anything that takes up space and has mass ? 2011 Pearson Education, Inc. Elements and Compounds Matter is made up of elements An element is a substance that cannot be broken down to other substances by chemical reactions A compound is a substance consisting of two or more elements in a fixed ratio A compound has characteristics different from those of its elements ? 2011 Pearson Education, Inc. Figure 2.3 Sodium Chlorine Sodium chloride The Elements of Life About 20?25% of the 92 elements are essential to life, but it varies among organisms Humans need 25 elements while plants only need 17 elements

quiz 1

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Biology
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Chemical bonding
Chemistry
Chemical bond
Valence electron
Ionic bonding
Proton
Hydrogen
electron
Chemical reaction
Covalent bond
ion
Neutron

Evolution is biology?s core theme that ties together all the other themes. Which of the following is not explained by the theory of evolution? a. The unity and diversity of life. b. How organisms become adapted to their environment through the differential reproductive success of varying individuals. c. Why distantly related organisms sometime resemble each other. d. How the first living cells were formed. e. How humans have descended from common ancestors shared with other primate species. Which of the following is necessary for cell survival? a. Reading of the DNA sequence to produce proteins. b. Response to environmental conditions. c. Obtain and process energy. d. Both A and C are true. e. All of the above are true.

ap_bio_ch_1_2.ppt

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Biology
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Chemical bonding
Chemistry
Chemical properties
Quantum chemistry
Charge carriers
Chemical bond
Hydrogen bond
Properties of water
Proton
ion
Hydrogen
electron

Introductory Questions #1 Name the seven main properties of life. (Pg. 3) Which of the hierarchial levels of biology is the lowest in regard to carrying on and sustaining all life activities and is the fundamental unit of life? (pg 5) Introductory Questions #1 3. In your own words briefly describe what ?emergent properties? are. 4. How is negative feedback different from positive feedback? (pg. 11) What do these mechanisms do for a living thing? 5. Name the three domains of life. Which domain includes four out of the six kingdoms of life? 6. Why is natural selection considered the ?mechanism? for evolutionary adaptations to occur? 7. How is a hypothesis different from a theory?

ionic, covalent and hydrogen bonds

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Biology
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Chemical bonding
Chemical bond
Covalent bond
Ionic bonding
Hydrogen bond
Chemical polarity
Chemistry
electron
ion
Proton
Atom
Hydrogen

Assignment 2 ? Chemical Bonds In this world there are many different kinds of living organisms. All organisms are composed of atoms, that bond together to make the necessary components of a living organism. There are three identified chemical bonds that are recognized, they are ionic bonds, covalent bonds and hydrogen bonds. All bonds are not created equal, just ask the electrons!

Principles of Chemistry Chapter 2

Subject: 
Chemistry
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Chemistry
Periodic Table
Chemical bonding
ions
Chemical compounds
Chemical bond
Ionic bonding
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molecule
Chemical substance
Chemical formula
Hydride

Chapter 2: Atoms and Molecules Section 1: Insight into Polymers Wednesday, August 27, 2014 12:40 PM What is a polymer? -substance consisting of many large particles (called momoners) -monomers are small molecules made of many atoms ? note: the composition of the monomers determines the properties of the polymer ? All polymers have a polymer backbone, which is a long string of atoms keeping the molecule together. In organic chemistry, the backbone is made of carbon molecules! ? ? ? THE DIFFERENT COMBOS OF ATOMS MAKE DIFFERENT POLYMERS! ? ? ? ? Coulomb's Law describes interaction of charged particles. ? (remember the E is the permittivity constant) ? ? ? ? ?

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