Chapter 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Chemistry - Long Definition | The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular system
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| Chemistry - Short Definition | The science dealing with the composition of matter and the changes in composition that matter undergoes.
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| Scientific Method | Collect the facts or data, formulate a hypothesis, plan and do additional experiments to test the hypothesis, modify the hypothesis.
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| Hypothesis | A tentative explanation of certain facts that provides a basis for further experimentation.
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| Theory | An explanation of the general principles of certain phenomena with considerable evidence or facts to support it.
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| Scientific Laws | Simple statements of natural phenomena to which no exceptions are known under the given conditions.
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| Matter | Anything that has mass and occupies space.
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| Solid | Has a definite shape and volume, with particles clinging rigidly to one another.
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| Amorphous (Solids) | Without shape or form.
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| Liquid | Has a definite volume but not a definite shape, with particles that stick firmly but not rigidly.
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| Gas | Has indefinite volume and no fixed shape, with particles that move independently of one another.
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| Substance | A particular kind of matter with a definite, fixed composition.
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| Homogeneous | Matter is uniform in appearance and has the same properties throughout.
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| Heterogeneous | Matter consisting of two or more physically distinct phases.
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| Phase | A homogeneous part of a system separated from other parts by physical boundaries.
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| System | Simply the body of matter under consideration.
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| Mixture | A material containing two or more substances and can be either heterogeneous or homogeneous.
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| Common Solids | Aluminum, Copper, Gold, Polyethylene, Salt, Sand, Steel, Sulfur
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| Common Liquids | Alcohol, Blood, Gasoline, Honey, Mercury, Oil, Vinegar, Water
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| Common Gases | Acetylene, Air, Butane, Carbon dioxide, Chlorine, Helium, Methane, Oxygen
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| Physical Properties of Solids | State Solid, Shape Definite, Volume Definite, Particles rigidly clinging; tightly packed, Compressibility Very slight.
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| Physical Properties of Liquids | State Liquid, Shape Indefinite; Volume Definite; Particles Mobile/adhering; Compressibility Slight.
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| Physical Properties of Gases | State Gas; Shape Indefinite; Volume Indefinite; Particles Independent of each other and relatively far apart; Compressibility High.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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