UNIT 2 - Chemical Basis of Life

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Last updated 8:53 AM on 8/13/26
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14 Terms

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Chemistry

Study of the co position and structure of substances and the reactions they undergo

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Matter

Anything that occupies space and has mass

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Mass

Amount of matter in an object and has weight

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Element

Simplest form of matter with unique physical and chemical properties

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Atom

Smallest particle of an element that has chemical characteristics of an element

Composed of subatomic particles and may have an electrical charge

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Neutron

No electric charge

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Proton

Has one positive charge

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Electron

Has one negative charge

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Molecule

When two or more atoms chemically combined to form a structure that performs as an independent unit

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Compound

When two or more different types of atoms are chemically combined

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Dissociation

Separation of ions in an ionic compound by polar water molecule

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Chemical Reaction

Formation or breaking of chemical bonds between ions, atoms, molecules, or compounds

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Reactants

Substances that go into chemical reaction

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Products that arise from chemical reactions