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Chemistry to Remember
Chemistry to Remember

File - Flipped Out Science with Mrs. Thomas!
File - Flipped Out Science with Mrs. Thomas!

... 1. Complete this test review and then study! 2. Text book pages that relate to this material: Unit 3 – p. 109 – 135 and 139 – 168 (the second half of the unit focuses on the second half of Unit 3 in the textbook) 3. Notes are always posted on the website – look in Unit 2.2 4. Remember, the “Unit Enr ...
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Bio_130_files/Chemistry Review

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Sample Exam 1 Key

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Unit 2.2 Test Review Key

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... 1. Color the carbon atoms black, the oxygen atoms red, and leave the hydrogen atoms white. 2. Use scissors to carefully cut out the atoms. o Build the reactants: 3. On a sheet of paper, place the atoms together to make the molecules of the reactants on the left side of the chemical equation for the ...
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... F. A multiplier. It is used to balance equations. 8. Synthesis Reaction G. A reaction in which two reactant compounds switch ions. 9. Decomposition Reaction H. This number tells the number of atoms of one element in a 10. Single Displacement Reaction compound. I. Bonds formed by gaining and losing 1 ...
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physical and chemical change

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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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