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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is chemistry?
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It is a study of matter and how it changes.
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What is matter?
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Anything that has mass and takes up space.
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What are the states of matter?
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Solid, liquid and gas.
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What is an atom?
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Atoms are the basic building blocks of matter. They contain subatomic particles called neutrons, electrons, and protons.
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What are elements?
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Elements are made up of two or more of the same atom.
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Hydrogen, Oxygen, Carbon...
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What is a compound?
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Compounds are made up of two or more elements in a fixed ratio.
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Water, hydroxide...
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Define physical property and give some examples.
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It can be observed without changing the substance into something else.
Boiling point, melting point, density, mass and volume. |
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Define chemical property and give some examples.
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It can only be observed when substance is changed into something else.
Flammability, reactivity, corrosiveness |
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Define intensive property and give some examples.
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Intensive properties of substances are independent of amount of the sample.
Color, boiling point, melting point, and density |
Can be used to identify substances...
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Define extensive property and give some examples.
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Extensive properties of substances are dependent on the amount of substance present.
Mass, volume and energy |
Relates to amount of substance...
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Define physical change and give some examples.
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Physical changes are ones that do not alter the substance's composition.
Changes in state (liquid, solid, gas) or in volume. |
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Define chemical change and give some examples.
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Chemical changes alter a substance's composition.
Includes combustion, oxidation, and decomposition. |
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Define distillation.
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A process that depends on the substance's ability to form gases.
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Boiling point...
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Define filtration.
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A process that separates liquids from solids.
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Think water filter...
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Define chromatography.
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A process that separates mixtures.
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Thin layer chromatography
Size exclusion Ion Exchange |
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Which four elements make up 96% of all living matter?
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Carbon (C), Hydrogen (H), Oxygen (O) and Nitrogen (N)
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