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GENERAL SCIENCE > MATTER > Flashcards

MATTER Flashcards

1
Q

anything that occupies space & has mass

A

matter

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2
Q

properties that can be observed & measured with out changing the substance

A

physical properties

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3
Q

doesn’t depend on the amount of matter e.g. density, odor, taste

A

intensive properties

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4
Q

what properioes that
depend on the amount of matter e.g. mass, volume, length

A

extensive properties

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5
Q

property that can be identified when one substance reacts with other substance

A

chemical properties

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6
Q

what are the pure substances

A

elements, metals, non-metals, metalloids

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7
Q

what pure substance that cannot be decomposed by ordinary chemical means

A

elements

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8
Q

what pure substance that conducts heat and electricity easily

A

metals

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9
Q

what pure substance that have low density and don’t conduct heat & electricity

A

non-metals

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10
Q

what pure substance that has properties of both metals and non-metals

A

metalloids

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11
Q

combination of two or more elements that can be decomposed chemically

A

compounds

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12
Q

what compounds that contain carbon, especially carbon-hydrogen bonds

A

organic compounds

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13
Q

what compounds that don’t have carbon-hydrogen bonds but contain table salt (NaCl), CO2, diamond (pure carbon)

A

inorganic compounds

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14
Q

combination of two or more substances that are physically mixed and can be separated

A

mixtures

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15
Q

what mixtures where there is only one phase is observable

A

homogenous

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16
Q

how does homogenous happen

A

solution = solute + solvent

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17
Q

what is the difference between solute & solvent

A

solute is the substance dissolved e.g. salt

solvent is the dissolving agent
e.g. water

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18
Q

what homogenous solution is where there are more solute than solvent

A

concentrated

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19
Q

what homogenous solution is where there are more solvent than solute

A

diluted

20
Q

what homogenous solution is where there are equal amount of solute and solvent

A

saturated

21
Q

what homogenous solution is where the solute is higher than max

A

supersaturated solution

22
Q

what kind of mixtures where there are 2 or more phases are observable

A

heterogeneous

23
Q

what phase in heterogeneous mixture where particles are settle out

A

suspension

24
Q

what phase in heterogeneous mixture where it exhibits tyndall effect (if light passes through, light beam will be visible)

A

colloids

25
Q

what are the fundamental states/phase of matter

A

solid
liquid
gas
plasma - when air/gas is ionized
Bose Einstein Condensate (BEC) - when gas of bosons cooled to temp close to absolute zero

26
Q

solid to liquid

A

melting

27
Q

liquid to solid

A

freezing

28
Q

liquid to gas

A

evaporation

29
Q

gas to liquid

A

condensation

30
Q

solid to gas

A

sublimation

31
Q

gas to solid

A

deposition

32
Q

ability of metals to be flattened into sheets w/out breaking

A

malleability

33
Q

ability of metals to be drawn into wires

A

ductility

34
Q

ability o f an object to be stretched and then return to its original shape

A

elasticity

35
Q

amount of solute that can be dissolved in a given amount of solvent at any given temp

A

solubility

36
Q

property of a liquid to draw the surface molecules into body of a liquid and reduces its surface area

A

surface tension

37
Q

resistance of fluid to flow

A

viscosity

38
Q

ability of liquids to rise through tubes

A

capillarity

39
Q

what changes that involve change in state, size, shape, or physical appearance

A

physical change

40
Q

change that result in formation of new substance

A

chemical change

41
Q

ability of matter to spread quickly; movement of substance from an area higher concentration to an area of lower concentration

A

diffusion

42
Q

attraction between unlike molecules

A

adhesion

43
Q

attraction between like molecules

A

cohesion

44
Q

refers to the random motion of particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium

A

brownian motion

45
Q

chemical reaction that releases heat to the surroundings

A

exothermic reaction

46
Q

chemical reaction that absorbs heat from the surroundings

A

endothermic reaction

GENERAL SCIENCE (9 decks)

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