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Honors Chemistry Review Packet KEY
Honors Chemistry Review Packet KEY

... 5. Color (it’s the only white solid). 6. Liquids and gases both have an indefinite shape; while the shape of a solid is definite, the shape of a liquid is indefinite. 7. It is reversible because solid mercury can be melted back into a liquid again. 8. Platinum and copper can have the same mass and v ...
Chemical Reactions
Chemical Reactions

Notes. - Net Start Class
Notes. - Net Start Class

The Periodic Table OL Page 1 of 2 G. Galvin Name: Periodic Table
The Periodic Table OL Page 1 of 2 G. Galvin Name: Periodic Table

... -define atomic number (Z) and mass number (A) -define relative atomic mass (Ar) using 12C scale -define isotope -describe the composition of isotopes using hydrogen and carbon as an example -describe the organisation of particles in atoms of elements numbers 1-20 -classify the first twenty elem ...
Chapter 3 - Warren County Schools
Chapter 3 - Warren County Schools

Chemical Building Blocks Chapter One
Chemical Building Blocks Chapter One

... Characteristic Property: a quality of a substance that never changes and can be used to identify the substances (pg. 15) Boiling Point: the temperature at which a substance changes from a liquid to a gas (pg. 16) Physical Change: a change in a substance that does not change its identity; for example ...
SEPARATION OF MATTER - Los Angeles City College
SEPARATION OF MATTER - Los Angeles City College

... may be determined without altering the composition of the material; bp (boiling point), mp, color, density etc., no change in the chemical identity occurs. • Chemical properties: characteristics of a material which involves altering the composition of the material, the ability to form new substances ...
Analysis of a Matter
Analysis of a Matter

... may be determined without altering the composition of the material; bp (boiling point), mp, color, density etc., no change in the chemical identity occurs. • Chemical properties: characteristics of a material which involves altering the composition of the material, the ability to form new substances ...
Chapter 8 Study Guide
Chapter 8 Study Guide

... a. Empedocles started the 4-element theory of earth, air, fire, and water. It was simple, popular, and easy to understand, but incorrect b. Democritus originated the atomic theory. His atomic theory was simple, unpopular, and also incorrect. c. Aristotle supported the 4-element theory and added the ...
CHEMICAL REACTION
CHEMICAL REACTION

... side of the equation in a format that can be revised. Revise the tally with each change. • Use coefficients in front of the elements and compounds to balance the number of atoms of each element. • RIGHT: 2NaNO3 • WRONG:Na2NO3 ...
Electron Arrangement
Electron Arrangement

Solute
Solute

... Gas – neither definite volume nor definite shape; particles are at great distances from one another Plasma – high temperature, ionized phase of matter as found on the sun. ...
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2 ppt

...  Different number of neutrons (heavier)  Some are unstable ...
Chemistry Test Study Guide
Chemistry Test Study Guide

... electron, many are salt forming elements, soft, Alkaline Earth Metals – Group 2, slightly reactive metals, two valence electrons, many are minerals Halogens – Group 17, most reactive nonmetals, have 7 valence electrons many are used as disinfectants Noble Gases – Group 18, least reactive elements, f ...
Types of Measurement
Types of Measurement

... 2. In an amorphous solid, the internal structure lacks order. Atoms, ions, or molecules are randomly arranged. A. These substances usually cool rapidly – Not enough time for the particles to arrange themselves in a pattern. B. Examples: Rubber, glass, plastics, polymers ...
Midterm Review Sample Content Questions
Midterm Review Sample Content Questions

... 17. Which of the ions in problem 15 are anions? How would you recognize an anion? 18. What is the significance of Rutherford’s gold foil experimentation? 19. What is the significance of the Plum pudding model of the atom? 20. Bohr is known for the “planetary model” of the atom – what does this mean? ...
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... _____________________ properties can be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition.. Chemical properties include: acidity, basicity, combustibility, and ___________________. Chemical and Physical properties ca ...
MatterPP4
MatterPP4

... Dissolving – The process in which particles of substances separate and spread evenly amongst each other. • Solute – substance that is dissolved. A solute is soluble, or able to dissolve. • A substance that is insoluble is unable to dissolve, forms a mixture that is not homogeneous, and therefore NOT ...
Units 3 and 4 Revision
Units 3 and 4 Revision

... Standard Grade Revision Units 3 and 4 Q1. The box below shows the names of some elements. ...
File
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... 31. What is a compound? Two or more elements chemically combined have their own unique properties 32. Give an example of a compound. H2O 33. What is a molecule? An element with more than one atom attached to it 34. Give an example of a molecule. O₂- air we breathe O₃- ozone layer 35. As you go from ...
General Chemistry - Review for final exam: (Make sure you bring
General Chemistry - Review for final exam: (Make sure you bring

... 71. In the above reaction, NaCl + F2  NaF + Cl2, F is more or less reactive than Cl? 72. In the activity series of metals are the more reactive metals found on the top or the bottom of the chart? 73. What conditions in the reactants must be present in order for a double-replacement to take place? 7 ...
GY 111 Lecture Note Series Elemental Chemistry
GY 111 Lecture Note Series Elemental Chemistry

chemistry - cloudfront.net
chemistry - cloudfront.net

... Group 1: alkali metals (except H), soft, very reactive metal (usually exists as compounds; easily lose their one valence electron); forms a “base” (or alkali) when reacting with water (not just dissolved!) Group 2: alkaline earth metals; also form bases with water; do not dissolve well, reactive (lo ...
Chapter 1 - Manual Science Chemistry/Physics
Chapter 1 - Manual Science Chemistry/Physics

...  Solid – definite volume and definite shape; lowest amount of energy  Liquid – definite volume but indefinite shape  Gas – neither definite volume or shape  Plasma – high temperature physical state in which atoms lose most of their electrons; highest amount of energy  Chemical Properties – a su ...
File Vocabulary PPT set #1
File Vocabulary PPT set #1

... • Equal forces acting on an object in opposite directions ...
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History of chemistry



The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that would eventually form the basis to the various branches of chemistry. Examples include extracting metals from ores, making pottery and glazes, fermenting beer and wine, extracting chemicals from plants for medicine and perfume, rendering fat into soap, making glass, and making alloys like bronze.The protoscience of chemistry, alchemy, was unsuccessful in explaining the nature of matter and its transformations. However, by performing experiments and recording the results, alchemists set the stage for modern chemistry. The distinction began to emerge when a clear differentiation was made between chemistry and alchemy by Robert Boyle in his work The Sceptical Chymist (1661). While both alchemy and chemistry are concerned with matter and its transformations, chemists are seen as applying scientific method to their work.Chemistry is considered to have become an established science with the work of Antoine Lavoisier, who developed a law of conservation of mass that demanded careful measurement and quantitative observations of chemical phenomena. The history of chemistry is intertwined with the history of thermodynamics, especially through the work of Willard Gibbs.
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