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gen chem > Lesson 2 > Flashcards

Lesson 2 Flashcards

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1
Q

Deals with composition, structure, and properties of matter

A

Chemistry

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2
Q

Anything that hasass and occupies space

A

Matter

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3
Q

State of Matter

A

Solid
Liquid
Gas

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4
Q

Their particles are close together, but cannot be compared and cannot move

A

Solid

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5
Q

Particles are close together but not held rigidly in position

A

Liquid

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6
Q

Far apart from each other and are arranged in a random way

A

Gas/Gases

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7
Q

Has no defined shape or Volume

A

Plasma

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8
Q

Water is liquid, when heated, the liquid state changes to gas

A

Evaporation

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9
Q

When vapor molecules slow down and gradually turn back into liquid

A

Condensation

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10
Q

When frozen, extremely slow and move very little. They hold onto each other, turning the water into ice, which is in the solid state

A

Freezing

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11
Q

Ice at room temperature turns the ice back into liquid state

A

Melting

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12
Q

By the addition of heat, solid is converted to gas

A

Sublimation

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13
Q

Occurs when gas is converted to solid

A

Deposition

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14
Q

Characteristics of a certain substance that sets it apart from other substances

A

Properties of matter

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15
Q

Property that becomes evident during a chemical reaction

A

Chemical Property

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16
Q

Property that can be measured or observed without changing the chemical composition of the substance

A

Physical Property

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17
Q

Cannot be used to help identify the a substance because it changes (Extrinsic Property)

A

Extensive property

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18
Q

Can be used to help identify a substance because it does not change with the amount of matter present (Intrinsic Property)

A

Intensive Property

19
Q

No change in the composition of matter

A

Physical Changes

20
Q

Solid to Liquid

A

Melting

21
Q

Liquid to gas

A

Evaporation

22
Q

Solid to gas

A

Sublimation

23
Q

Liquid to Solid

A

Freezing

24
Q

Gas to liquid

A

Condensation

25
Q

Gas to solid

A

Deposition

26
Q

There is a change in the composition of matter

A

Chemical Changes

27
Q

It can be either an element or a compound

A

Pure Substances

28
Q

Simplest form of matter

A

Element

29
Q

Elements react with each other

A

Compound

30
Q

Are composed of two or more substances

A

Mixture

31
Q

Solution is relatively uniform in composition

A

Homogeneous mixture

32
Q

A mixture whose composition varies from one position

A

Heterogeneous mixture

33
Q

Consist of coarse particles which are visible to the naked eye

A

Suspensions (hetero mixture)

34
Q

Consist of a dispersed phase

A

Colloids (hetero mixture)

35
Q

Atoms are composed of even smaller particles called as—

A

Subatomic particles

36
Q

Some atoms of a given element do not have the same mass number

A

Isotopes

37
Q

Indicates the number of protons

A

Atomic number

38
Q

Atomic number of the elements is the same with the number of protons

A

Protons

39
Q

Subtract the atomic mass and atomic number

A

Neutrons

40
Q

(+) minus the atomic number or protons
(-) add the atomic number or protons

A

Electrons

41
Q

Molecule is combination of at least two atoms in a definite proportion

A

Molecule

42
Q

Diatomic or polyatomic -more than 2 atoms

A

Ions

43
Q

Is the written structure of a compound

A

Chemical Formula

gen chem (3 decks)

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