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35 Cards in this Set
- Front
- Back
Chemistry |
the branch of science that deals with the identification of the substances of which matter is composed |
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Matter |
Anything that occupies space or has mass. |
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16% of the body is made up of four elements? |
Carbon,Hydrogen, and Nitrogen,oxygen |
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Atoms |
Building blocks of elements |
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Atomic number |
Equal to the number of protons that the atoms contains. |
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Atomic Mass |
Sum of protons and neutrons |
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Shell 1 |
Holds 2 electrons |
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Shell 2 |
Holds 8 electrons |
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Shell 3 |
Holds 18 electrons |
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Atomic weight |
Close to mass number of most abundant isotope |
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Radioactivity |
Process of spontaneous atomic decay |
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What are atoms United by? |
Chemical bonds |
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What are atoms United by? |
Chemical bonds |
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Rule of eight |
Octet rule |
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Ionic Bonds |
Forms when electrons are completely transferred from atom to another |
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Ionic Bonds |
Forms when electrons are completely transferred from atom to another |
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Covalent bonds |
Atoms become stable through shared electrons. |
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Hydrogen Bonds |
weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other. |
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Synthesis reaction |
(A+B>AB) |
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Exchange reaction |
Involved in both synthesis and decomposition reaction. |
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Important inorganic compounds |
Water,Carbohydrates, Lipids, Proteins, and nucleic acids |
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Ose means |
Sugar |
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Ose means |
Sugar |
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Ase means |
Enzyme |
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Anions are |
Negative |
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Cations are |
Positive |
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Cations are |
Positive |
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Nucleic Acids |
Provides blueprint for life |
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Cations are |
Positive |
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Nucleic Acids |
Provides blueprint for life |
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Organic compounds |
Contain carbon most are covalently bonded. |
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Cations are |
Positive |
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Nucleic Acids |
Provides blueprint for life |
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Organic compounds |
Contain carbon most are covalently bonded. |
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Inorganic Compounds |
Lack carbon tend to be simpler compounds. |