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science > matter > Flashcards

matter Flashcards

1
Q

define matter

A

matter is anything that takes of space and has a mass

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2
Q

what’s the particle theory

A
  1. all matter is made up up tiny particles
  2. particles of a pure substance are identical
  3. particles are in constance movement
  4. particles at high temperature move faster and particles are a low temperature move slower
  5. particles attract each other
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3
Q

define change of state

A

is the change of a substance from one physical from to another

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4
Q

what are the three states of matter

A

liquid, solide, gas

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5
Q

solids

A

-have a definite volume and shape
- does not take the shape of a container
- particles are held tighter, held tightly together, and vibrate slowly

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6
Q

liquids

A
  • have a definite volume but no definite shape
  • does take the shape of an container
  • particles are farther apart, held together loosely, and move freely
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7
Q

gases

A

-have no definite volume or shape
- does take the shape of a container
-particles are far apart, not held together, are free

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8
Q

when a substance change from one state to another energy is

A

lost or gained

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9
Q

energy gained =
energy lost =

A

speed up (higher temp)
slowed down (lower temp)

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10
Q

liquefaction

A

solid to liquid
(temperature increases)

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11
Q

solidification

A

liquid to solid
temperature decreases

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12
Q

evaporation

A

liquid to gas
temperature increases

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13
Q

condensation

A

gas to liquid

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14
Q

sublimation

A

gas to solid
temperature decrease

solid to gas
energy is added temperature increases

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15
Q

examples of an element

A

oxygene, gold, Cooper mercury

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16
Q

examples of a compound

A

salt, alcohol, sugar, chalk

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17
Q

what are the six possible kinds of mixtures

A

mixture of gases
mixture of liquids
mixture of solids
mixture of gases in a liquid
mixture of solids in a liquid
mixture of solids and gases

18
Q

atoms link together to make

A

molecules

19
Q

are there more compounds or elements

A

compounds

20
Q

the solute in a solution can be

A

any state of matter

21
Q

in solution of liquids and soil or liquid as gas which is always the solute

A

liquids

22
Q

an example of a solution

A

sugar water

23
Q

solute and solvent

A

solute = usually the things the dissolves (ex. sugar)
solvent = is usually a liquid (ex. water)

solute dissolves/ disappears in the solvent

24
Q

when is a mixture consider a solution

A

if the solute dissolves and spreads out evenly

25
Q

is white out a M or P

A

pure substance

26
Q

is brass and M or P

A

Mixture

27
Q

is honey M or P

A

pure substance

28
Q

is glass M or P

A

pure substance

29
Q

examples of homogenous mixtures

A

water, air, milk

30
Q

examples of heterogenous mixtures

A

sand, salt and pepper, water and ice

31
Q

qualitative

A

properties that are observed with the senses
sight, smell, touch, taste, hear

32
Q

quantitative

A

properties that are measured
always have a number or unit

33
Q

characteristics of qualitative properties

A
  1. state
  2. colour
  3. odour
  4. taste
  5. clarity (how light passes through)
  6. lustre (shinny)
  7. hardness
  8. texture
    9.malleability
  9. ductility (ability to stretch)
  10. viscosity
  11. form
34
Q

quantitative properties

A
  1. mass
  2. length width height
  3. volume
    4.solubility (how much it dissolves)
  4. melting pint
  5. boiling point
  6. density
35
Q

what is the difference between and physical and chemical change

A

in a physical change there is no change in the way atmosphere link up as well as no energy is taking in or reached during a physical change with the exception of changes of states

36
Q

does a chemical reaction cause a chemical change

A

yes

37
Q

do substances that take part in chemical reactions keep their properties

A

no

38
Q

example of physical changes

A

change of state, dissolving cutting up (ex. melting sugar, evaporation of water, mixing salt and pepper)

39
Q

example of chemical changes

A

combustion ( burning) corrosion (rusting)
(ex. baking a cake, rusting of an iron, electrolysis of water)

40
Q

clues that indicate a chemical change

A

change in colour
change in temperature
produces gad bubbles
produces light

41
Q

define chemical properties
and give 3 examples

A

A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction

flammability, toxicity, heat of combustion

science (11 decks)

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