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Physical Science > kaylin Matter > Flashcards

kaylin Matter Flashcards

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0
Q

What is matter?

A

Any object that takes up space and has a mass

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1
Q

What is chemistry?

A

The study of composition, structure, and properties and changes that matter goes through.

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2
Q

What is an element?

A

A substance that can’t be simplified by chemical means

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3
Q

What is an atom?

A

The smallest unit of an element

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4
Q

What is a compound?

A

Substance made of two or more different elements

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5
Q

What is a molecule?

A

Smallest unit of a substance that keeps all physical and chemical properties of the substance.

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6
Q

What is a chemical formula?

A

The recipe for a substance made of chemical symbols and numbers.

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7
Q

What is a pure substance?

A

Either single or a single compound element that has chemical and physical properties

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8
Q

What is a mixture?

A

Two or more substances combined but aren’t chemically combined.

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9
Q

What is a heterogeneous mixture?

A

When two substances mix together but don’t mix uniformly

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10
Q

What is a homogeneous mixture?

A

An evenly distributed mixture that can’t be separated

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11
Q

What is a miscible?

A

A homogeneous mixture of atleast 100 liquids.

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12
Q

What is an Immiscible?

A

A mixture that separates into layers (oil and water)

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13
Q

What is a melting point?

A

When solids become a liquid after it reaches a certain temperature and pressure.

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14
Q

What is a boiling point?

A

When liquid becomes a gas when it reaches a certain temperature

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15
Q

What is density?

A

The mass of an object compared to the objects volume

16
Q

What is reactivity?

A

When substances are allowed to chemically combine with one another.

17
Q

What is flammability?

A

When substances react to oxygen and catch fire when they are exposed to flames

18
Q

What are physical properties?

A

The observation of an object without changing the identity of the substance.

19
Q

What are chemical properties?

A

The observation of an object only when you change the identity of the object

20
Q

What is a physical change?

A

When the substance or material is changed but is still the original material.

21
Q

What is a chemical change?

A

Changing a material or substance to create a new substance

Physical Science (7 decks)

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