Matter And Measurments Flashcards

1
Q

Chemistry

A

Properties and changes of materials

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2
Q

Matter

A

Physical material of the universe

Occupies space

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3
Q

Substance

A

Fixed composition
Distinct properties

I.e. Water

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4
Q

Mixture

A

Combination of 2 or more substances

Each retains its own properties

Can be separated by physical means (evaporation, filtration, etc)

I.e. Koolaid

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5
Q

Heterogeneous

A

Non-uniform

I.e. Soup

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6
Q

Homogeneous

A

Solution

Uniform throughout

I.e. Clear air

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7
Q

Compound

A

Composed of 2 or more different elements
Composition is always the same for pure elements

I.e. Water will always be H and 2O

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8
Q

Physical Properties

A

Can be measured without changing identities

I.e. Boiling point

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9
Q

Chemical Properties

A

The way a substance reacts to other substances

I.e. Flammability

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10
Q

Physical Changes

A

Changes in state but not composition

I.e. Water to ice

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11
Q

Chemical Changes

A

Reaction

Combining or decomposing substances by breaking or forming bonds

I.e. H and 2O ➡ H2O

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