Chemistry Week 1 Key Terms and Concepts (copy)

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Last updated 9:53 PM on 4/18/26
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10 Terms

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Accuracy

How closely a measurement aligns with a correct value.

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Atom

Smallest particle of an element that can enter into a chemical combination.

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Celsius (°C)

Unit of temperature; water freezes at 0 °C and boils at 100 °C on this scale.

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Chemical Change

Change producing a different kind of matter from the original kind.

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Chemical Property

Behavior related to the change of one kind of matter into another.

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Chemistry

The study of the composition, properties, and interactions of matter.

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Compound

Pure substance that can be decomposed into two or more elements.

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Density

Ratio of mass to volume of a substance.

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Element

Substance composed of a single type of atom; cannot be decomposed chemically.

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Liquid

State of matter with definite volume but indefinite shape.