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Chemistry > Atomic Mass & KMT > Flashcards

Atomic Mass & KMT Flashcards

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1
Q

The number of protons in an atom

A

Atomic Number

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2
Q

The same numbers of protons and electrons equals…

A

Atomic Number

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3
Q

Protons + Neutrons equals…

A

Mass Number

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4
Q

Mass number – atomic number equals…

A

Your neutrons

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5
Q

Anything that has mass and takes up space

A

Matter

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6
Q

What are the two types of matter?

A

Mixture and Pure

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7
Q

Matter that is pure can be what two things?

A

Compound and element

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8
Q

Give an example of a compound.

A

Water

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9
Q

Give an example of an element.

A

Gold- Au

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10
Q

Matter that is a mixture can be what two types?

A

Homogenous and heterogenous

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11
Q

Give an example of a heterogenous mixture.

A

Skittles

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12
Q

Give an example of a homogenous mixture.

A

Mountain Dew

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13
Q

A homogenous mixture is made up of what two things?

A

A solute and solvent

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14
Q

What is the universal solvent?

A

Water

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15
Q

What does KMT stand for?

A

Kinetic Molecular Theory

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16
Q

What is KMT?

A

Explains the properties of gases in terms of the energy, size, and motion of their particles

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17
Q

Fusion/melting…

A

Solid to liquid

18
Q

Freezing…

A

Liquid to solid

19
Q

Vaporization/ Boiling…

A

Liquid to gas

20
Q

Condensation…

A

Gas to liquid

21
Q

Sublimation…

A

Solid to gas

22
Q

Deposition…

A

Gas to solid

23
Q

What are the 4 changes of matter?

A

Intensive, extensive, physical, and chemical

24
Q

Which change doesn’t depend on matter?

A

Intensive

25
Q

Give an example of intensive.

A

Density

26
Q

Give an example of extensive.

A

Weight, mass, volume, etc

27
Q

Give an example of physical.

A

Color, taste, etc

28
Q

Give an example to chemical.

A

Flammable

29
Q

What is the formula for density?

A

D=m/v

30
Q

Example problem:

D= 4g/ml V= 5ml Solve for M.

A

4=m/5
4x5
M= 20g

31
Q

All atoms have what?

A

A nucleus

32
Q

What is on the inside of the nucleus?

A

Protons and neutrons

33
Q

Protons and Neutrons together are also called what?

A

Called the mass

34
Q

Protons have what kind of charge?

A

Positive

35
Q

Electrons have what kind of charge?

A

Negative

36
Q

Neutrons have what kind of charge?

A

Neutral

37
Q

The number of electrons equal…

A

The number protons and atomic number

All the same

38
Q

How many does the first shell have?

A

2

39
Q

How many do all other shells after the first have?

A

8 or more

40
Q

The weighted average mass of the isotopes of that element

A

Atomic Mass

Chemistry (2 decks)

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