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General Chemistry > Week 1 > Flashcards

Week 1 Flashcards

Matter and its properties

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1
Q

properties that do not depend on the amount of matter present

A

Intensive property

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2
Q

properties that do depend on the amount of matter present

A

Extensive property

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3
Q

Bicarb of soda is used in cooking as a leavening agent. It is also called
bicarbonate of soda. The correct formula for bicarb of soda is

A

NaHCO3

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4
Q

Nitric acid is used in the manufacture of fertilizer and explosives. The
chemical formula for nitric acid is

A

HNO3

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5
Q

Permanent marker ink is best separated by which process?

A

CHROMATOGRAPHY

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6
Q

If you want to separate iron fillings from sand, which of the following
apparatus will you use?

A

MAGNET

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7
Q

What process is used to separate heterogeneous mixtures of solids and
liquids?

A

FILTRATION

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8
Q

What property of matter is being measured by placing the object in a
graduated cylinder with water and measuring how much water is displaced?

A

VOLUME

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9
Q

The melting point of a solid is the temperature at which it changes state
from a solid to a liquid at a given pressure. The melting point of a substance
is the same no matter how much of the substance is present. This makes
melting point a ______ physical property.

A

INTENSIVE PROPERTY

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10
Q

Matter is anything (1) _____________and volume.

A

MASS

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11
Q

A (2) _________ is a form of matter
with a uniform and unchanging composition.

A

SUBSTANCE

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12
Q

Substances have specific,
unchanging (3) ___________ that can be observed.

A

PROPERTIES

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13
Q

(4) _________ properties can be observed without changing
a substance’s chemical composition. Color, hardness, and

A

PHYSICAL

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14
Q

Color, hardness, and (5) ___________ are
examples.

A

DENSITY

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15
Q

Other properties cannot be observed without changing the composition
of a substance. These are called (6) ___________ properties. An example is the
tendency of iron to form rust when exposed to air.

A

CHEMICAL

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16
Q

the ability of substance to be stretched into wire.

A

DUCTILITY

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17
Q

the ability of substance to be hammered or transformed into
thin sheet.

A

MALLEABILITY

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18
Q

is the ability of matter to be scattered or spread out. This can be
observed when you add ink into the water.

A

DIFFUSION

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19
Q

Coal is used to produce electricity by burning them to power the generator.

A

chemical property

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20
Q

Water freezes at O0
C.

A

intensive property

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21
Q

Salt and refined sugar are both white in color.

A

intensive

22
Q

5 kg. rice is as heavy as 5 kg. newly harvested cotton.

A

extensive property

23
Q

Silver is usually tarnished when exposed to air forming silver oxide.

A

chemical property

24
Q

Boiling point of water

A

intensive property

24
Q

Color of the paper

A

intensive property

24
Q

Combustibility of plastic

A

physical property

24
Q

Length of paper

A

extensive property

25
Q

Mass of the paper

A

extensive property

26
Q

ability to dissolve in a given solvent

A

solubility

27
Q

Glycerol (Glycerin)

A

C3 H8 O3

28
Q

salt (sodium chloride)

A

NACl

29
Q

Clorox (Sodium Hypochlorite)

A

NaCl0

30
Q

Ammonia (Nitrogen Trihdride)

A

NH3

31
Q

Chemical substances used for chlorinating swimming pools

A

Hypochlorites

31
Q

Baking Powder ( sodium Bicarbonate)

A

NaHCO3

32
Q

anesthetic that is used for minor surgery and is also known as laughing gas

A

Nitrous oxide (N2O)

33
Q

Used to make cakes and other baked products rise from the oven

A

Sodium bicarbonate

34
Q

Process of separating a solid-liquid mixtures by pouring

A

decantation

35
Q

separating components of a mixture that have differing absorptive tendencies on a stationary phase as the mixture passes over or through the stationary phase

A

chromatography

36
Q

separating insoluble liquid from a liquid using a filter paper

A

filtration

37
Q

heating the solution until the solvent evaporates (turns into gas) leaving behind the solid residue

A

evaporation

37
Q

separating based on boiling point

A

distillation

38
Q

used to separate a magnetic solid from a heterogeneous mixture

A

magnetic separation

39
Q

Table sugar

A

sucrose (C12H22O11)

40
Q

vinegar

A

acetic acid (CH3COOH)

41
Q

ALCOHOL

A

ETHANOL (C2H6O)

42
Q

SALT

A

SODIUM CHLORIDE (NACL)

43
Q

contains surfactants, which are substances with cleaning properties.
Surfactants have long water-insoluble hydrocarbon tail and water-soluble polar
heads.

A

DETERGENT

43
Q

BAKING POWDER

A

SODIUM BICARBONATE (NAHCO3)

44
Q

a household cleaning agent used to remove dyes and whiten clothing.

A

BLEACH

45
Q

is used to emit fragrance in different spaces at home,
especially in restrooms.

A

AIR FRESHENER OR PURIFIER

46
Q

is an antimicrobial household product. It kills microorganisms on
surfaces of inanimate objects.

A

DISINFECTANT

General Chemistry (1 decks)

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