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sicence > physical and chemical changes > Flashcards

physical and chemical changes Flashcards

1
Q

Physical property

A

Characteristics of a substance that like color, shapes, texture, mass, volume, and density.

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2
Q

Phase

A

All solids share two characteristics, definite shape and a definite volume.

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3
Q

Crystal

A

Solids arranged in a regulating, repeating pattern.

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4
Q

Gas

A

Gases do not have a definite shape or volume.

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5
Q

Plasma

A

Plasma is a phase that has extremely high energy which is dangerous. It is rare on earth but not in space.

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6
Q

Liquid

A

Liquids have no definite shape but has a definite volume.

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7
Q

Melting

A

The change of a solid into a liquid.

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8
Q

Melting Point

A

The temperature at which a solid changes to a liquid.

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9
Q

Freezing

A

A phase change of a liquid to a solid.

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10
Q

Freezing point

A

The freezing point of a substance is the same as the melting point.

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11
Q

Vaporization

A

The change of a substance from a liquid to a gas.

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12
Q

Evaporation

A

Vaporization happening at the surface of a liquid.

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13
Q

Boiling

A

The process in which particles inside as well on the surface of a liquid change to a gas

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14
Q

Boiling point

A

The temperature at which a substance changes from a liquid phase to the gas phase

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15
Q

Condensation

A

When a substance in the gas phase looses heat energy and changes into a liquid.

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16
Q

Sublimation

A

When a substance changes from the solid form directly to the gas form. example Dry ice.

17
Q

Chemical Property

A

Properties that describe how a substance changes into other new substances.

18
Q

Flammability

A

It is the ability to burn. when a substance is burned a new substance is created.

19
Q

Chemical change

A

Changes a substance undergoes when they turn into other substances.

20
Q

Chemical reaction

A

Another name for chemical change.

21
Q

Amorphous solids

A

Amorphous solids are solid that lose there shape under certain conditions. Examples wax, glass, and tar.

22
Q

Viscosity

A

The resistance of liquids to move.

23
Q

solid

A

Has a definite shape and volume.

sicence (10 decks)

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