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matter Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

those which the substance shows by itself without interacting with another substance such as color, melting point, boiling point, density

A

physical properties

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2
Q

those which the substance shows as it interacts with, or transforms into, other substances such as flammability, corrosiveness

A

chrmical properties

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3
Q

depends upon how much matter is being considered. This property change when the amount of the substance changes.

A

extensive property

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4
Q

those which the substance shows as it interacts with, or transforms into, other substances such as flammability, corrosiveness

A

Chemical Properties

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5
Q

does not depend upon how much matter is being considered. This property does not depend on the amount of the substance.

A

intensive property

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6
Q

when a substance changes its appearance without changing its composition.

A

physical xhange

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7
Q

a transition of matter from one state to another.

A

phase change

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8
Q

also known as a chemical reaction.

A

chemical change

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9
Q

when a substance is transformed into another substance with a totally different composition and properties.

A

chemical change

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10
Q

change that is always accompanied by the formation of a new substance.

A

chemical change

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11
Q

the simplest type of substance with unique physical and chemical properties.

A

element

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12
Q

An element consists of how many types of atoms?

A

only one type

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13
Q

can an element be broken down into simpler substances ever?

A

only chemical. jk no

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14
Q

elements have been identified
•elements occur naturally on Earth
•elements have been created by scientists

A

118,94,24

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15
Q

(synthetic elements -

A

produced in nuclear reactions)

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16
Q

have high thermal and electrical conductivity.

A

metals

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17
Q
  • mobile particles that can carry thermal or heat energy from one point of the material to another.
A

Thermal conductivity

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18
Q

charge cariers that are free to move and carry electrical charges from one point of the material to another.

A

electrical conductivity

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19
Q

allows metals to be rolled, flattened or hammered into sheets without breaking.

A

malleability

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20
Q
  • allows metals to be drawn into wires.
A

ductility

21
Q

metals reflect the light that strikes their surfaces, making them appear shiny.

A

luster

22
Q

usually do not conduct heat and electricity very well.

A

nonmetals

23
Q

They have little luster and seldom reflect light. are brittle, neither malleable nor ductile.

A

Nonmetals

24
Q

They may be solid (such as carbon and sulfur), liquid (bromine) or gas (oxygen and nitrogen) at room temperature.

A

bonmetals

25
Q

have properties intermediate between
metals and nonmetals.

A

metalloids

26
Q

Because of their properties, ? like silicon and germanium are used in electronic industry aS semiconductors.

A

metalloids

27
Q

Elements are composed
? kind o atom

A

one

28
Q

conpounds have? atoms?

A

two or more

29
Q

combination of two or
more pure substances in which each pure substance retain sits individual chemical properties.

A

mixture

30
Q

a mixture that does not blend smoothv
throughout and in
which the
individual substances remain distinct.

A

hetero

31
Q

a mixture that has
composition
throughout: it alwavs has a single
phase.

A

homo

32
Q

This process separates the
parts or a mixture by hand
when the panicles are large enough to be seen cleariv.

A

mechanical

33
Q

using dry mixture whIch contains substances of different sizes by passing Ir inrougn a
device holes.

A

Sifting or Seiving

34
Q

one component of the mixture has magnetic properties, you could use c magnet to
separate ine
mixture.
Iron,
nickel, and
cobalt are a materials that are mooneic

A

magnetic

35
Q

a process of separating
The
• solid-iquid components of mixtures by gently pouring out the liquid so as not to disturb the solids that readily settle at the bottom of the container.

A

decantation

36
Q

uses a porous barrier
seperate asolid
Trom a liquid.

A

filteation

37
Q

distribution of a solute in two immiscible solvents. A substance previously dissolved in a given solvent may be ‘extracted’ or removed by shaking the solution with another solvent where it is more soluble.

A

extraction

38
Q

used for extraction

A

seperating funnel

39
Q

solid changes to vapor without melting, i.e., without going through the liquid state.

A

sublimation

40
Q

• It can be used to separate two solids present in a mixture when one of the solids sublimates but not the other.

A

sublimation

41
Q

physical separation technique that is based on differences in the boiling points of the substances involved.

A

Distillation

42
Q

The solution is heated, causing the evaporation of the
more
volatile
component; thus, separating it as a vapor which is changed back to liquid by cooling (condensation).

A

Distillation

43
Q

allows the volatile liquid to escape, letting the solute particles to be collected on the surface of the container.

A

evap

44
Q

used for evap

A

• It is usually carried out using an evaporating dish or porcelain dish.
The heat of the dish is sufficient for appreciable evaporation. Residue is the solid particle left in the dish.

45
Q

separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance.

A

Crystallization

46
Q

a process of separating mixtures by encouraging different parts of the mixture to move through an absorbing material at different rates.

A

Chromatography

47
Q

The process of separation in chromatography is due to ?

A

capillary action (the rising of the surface of a liquid in small tubes) and solubility.

48
Q

speeds up the settling of the precipitate

A

Centrifugation

biology (35 decks)

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