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INORGANIC CHEM (1ST SEM PRELIMS) > LESSON 1 > Flashcards

LESSON 1 Flashcards

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1
Q

The field of study concerned with the characteristics, composition, and transformations

A

Chemistry

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2
Q

Amount of matter in an object (constant)

A

Mass

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3
Q

The gravitational force of attraction exerted by the earth on a body (varies from places)

A

Weight

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4
Q

Physical states of matter

A

Solid, Liquid, & Gas

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5
Q

Shape and Volume of Solid

A

Definite, definite

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6
Q

Shape and Volume of Liquid

A

Indefinite, Definite

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7
Q

Shape and Volume of Gas

A

Indefinite, Indefinite

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8
Q

Solid to Gas

A

Sublimation

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9
Q

Gas to Solid

A

Deposition

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10
Q

Liquid to Gas

A

Vaporization/Evaporation

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11
Q

Gas to Liquid

A

Condensation

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12
Q

Solid to Liquid

A

Melting

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13
Q

Liquid to Solid

A

Freezing

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14
Q

Distinguishing characteristic of a substance, used for identification & description

A

Property

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15
Q

Characteristic of a substance that can be observed without changing the basic identity of a substance

A

Physical property

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16
Q

Common physical properties

A

Color, physical state (SLG), melting & boiling point, hardness

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17
Q

Characteristic of a substance that describes the way the substance undergoes or resists change to form a new substance

A

Chemical property

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18
Q

Interaction (reaction) of a substance with one or more substances

A

Chemical property

19
Q

A change that occurs when there is a presence of energy (heat or light)

A

Decomposition (H2O2 > H2O and O2)

20
Q

A substance changes its physical appearance but not its chemical composition

A

Physical change

21
Q

A substance undergoes a change in chemical composition

A

Chemical change

22
Q

Always involved conversion of the material/s into one or more new substances

A

Chemical change

23
Q

Chemical change

A

Chemical reaction

24
Q

Chemical identity DOES NOT CHANGE

A

PHYSICAL

25
Q

Chemical identity DOES CHANGE

A

Chemical

26
Q

A single kind of matter that cannot be separated into other kinds of matter by any physical means

A

Pure substance

27
Q

A Pure substance has

A

Definite & constant composition

28
Q

A physical combination of two or more pure substances in which each substance retains its own chemical identity

A

Mixture

29
Q

Physically mixed, not chemically combined

A

Mixture

30
Q

Can be separated by using physical means

A

Mixture

31
Q

Another characteristic of a mixture

A

Variable composition

32
Q

A pure substance that cannot be broken down into simpler pure substances by chemical means

A

Element

33
Q

A pure substance that can be broken down into two/more simpler substances by chemical means

A

Compound

34
Q

Breakdown products for any compound

A

Elements

35
Q

A mixture that contains visibly different phases, non uniform appearance

A

Heterogenous mixture

36
Q

A mixture that contains only one visible distinct phase, uniform properties

A

Homogenous mixture

37
Q

States that “Different samples of the same compound always contain its constituents elements in the same proportion by mass”

A

Law of definite proportion

38
Q

By Joseph Proust

A

Law of definite proportion

39
Q

States that “if two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the element are in ratios of small whole numbers”

A

Law of multiple proportion

40
Q

States that “matter can be neither created nor destroyed”

A

Law of conservation of mass

41
Q

Process of getting the actual measure of an object’s dimension in terms of standard unit

A

Measurements

42
Q

How close a measurement is to the true value

A

Accuracy

43
Q

Refers to the repeatability of the measurement

A

Precision

INORGANIC CHEM (1ST SEM PRELIMS) (2 decks)

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