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Chemical elements

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Chemistry Final Review Guide 2012 The 1st Section on the final will be metric conversions, significant figures, and scientific notation. The 2nd Section on the final will be multiple choice questions. There will be 40 of them and they will cover vocabulary and basic chemistry questions. The BEST way to study for this section would be to gather all old chemistry tests and review all of the multiple choice questions The 3rd Section will be calculations split into 3 parts. Part A will focus on writing chemical equations from word equations, balancing them, and then stating what type of reaction it is. For example: 1. Solid aluminum reacts with oxygen gas to produce aluminum oxide.

Metal Nonmetal and Metalloid

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metal nonmetal metalloid chemistry

7.6 Metals, Nonmetals, and Metalloids The more an element exhibits the physical and chemical properties of metals, the greater its metallic character. Metals: Good conductor of heat and electricity. Malleable (can be pounded into thin sheets) and ductile (can be drawn into wires). Tend to have low ionization energies and therefore tend to form positive ions relatively easily. Are oxidized. Compounds of metals with nonmetals tend to be ionic substances (halides). Most metal oxides are basic. Metal oxide + water -> metal hydroxide Metal oxide + acid -> salt + water Nonmetals: Nonmetals vary greatly in appearances. Because of their electron affinities, nonmetals tend to gain electrons when they react with metals.

Campbell Biology 9th Edition Chapter 4 Outline

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Carbon and the Molecular Diversity of Life

Chapter 4 Carbon and the Molecular Diversity of Life Outline Carbon: The Backbone of Life Organisms are made up of chemicals based mostly on carbon Carbon comes into the atmosphere through the action of plants: plants use solar energy to transform CO2 Carbon forms molecules that are large, complex, and varied Organic Chemistry is the Study of Carbon Compounds Organic Chemistry: The branch of chemistry that specializes in the study of carbon compounds Overall percentages of the major elements of life are quite uniform from one organism to the next Chemists learned to make many simple compounds in the lab by combining elements under the right conditions by the 1800s Vitalism: The belief in a life force outside the jurisdiction of physical and chemical laws

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