GEN CHEM
問題一覧
1
occupies space and posses rest mass
matter
2
scientific idea that helps us under how particles behave in different states of matter
kinetic particle theory
3
Definite shape, Defrnite volume, Hign density , Rigidity
properties of solid
4
tightly packed togetner, nave Ittle space between them
particles of solid
5
Closely packed, have more Kinetic energy than solid particles.
liquid
6
characteristics than either be observed or measured
properties
7
depends on the amount of matter in a sample
extensive properties
8
depends on the type of matter in a sample.
intensive properties
9
can be observed or measured unthout changing identy
physical properties
10
it undergo chemical change
chemical properties
11
refers to the physical or chemical transformation
changes in matter
12
involve a change in ome or more physical properties
physical change
13
involve change in chemical composition.
chemical change
14
plant growth
chemical change
15
melting
physical change
16
basic building blocks of matter
atoms
17
pure subtance made up of only one type of atom
elemets
18
group of two or more atoms that are held together by chemical bonds
molecules
19
this is chemically bounded
compounds
20
this is not chemically bounded
mixture
21
composition is uniform throughout the mixture .
homogeneous mixture
22
Mixture in which the composition is not uniform throughout the mixture
heterogeneous mixture
23
Is a type of mixture in which one substance (the solute) is dissolved in another substance (the solvent)
solution
24
Are a type of mixtures where small particles of one substance are evenly dispersed throughout another substance Ex: milk, fog, smoke
colloids
25
Are type of mixtures in which solid particles are evenly dispersed throughout liquid
suspension
26
Process by which a substance changes from solid to liquid
melting
27
states that energy can neither be created nor be destroyed.
the law of conservation of energy
28
Process by which a substance changes from liquid to a solid
freezing
29
Process by which a substance changes from liquid to a gas at the boiling temperature of a substance
boiling
30
Process by which a liquid changes to a gas at temperatures lower than its boiling point.
evaporation
31
liquids that evaporate quickly at room temperature.
volitile liquids
32
Process by which a gas changes to liquid
condensation
33
Process by which a solid changes directly to a gas without going through a liquid state.
sublimation
34
Process by which a gas changes directly to a solid without going through a liquid state
deposition
35
Process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration
diffusion
36
used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass.
filtration
37
action of purifying a liquid by a process of heating and cooling
distillation
38
separates dissolved substance by different interactions with (that is travel through) a material
chromatography
39
the action or process using a centrifuge, typically to separate fluids of different densities or liquids from solids.
centrifugation
40
method of removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation.
cyclonic separation
41
repeating a particular measurement will usually not obtain precisely the same result.
significant figure
42
refers to the closeness of a set values obtained from identical measurement of something
precision
43
refers to the closeness of a single measurement to it’s true value
accuracy
44
Which of the following is the correct
order of getting salt from the mixture
of sand and salt?
Dissolving in water – filtration-evaporation
45
Dalton's Atomic Theory was proposed in the year
1808
46
Which of the following properties could NOT be used to distinguish table salt and table sugar?
color
47
Theory, matter s Composed dode
particles that are in motion.
tiny
48
Chromatography is best used to separate
ink component
問題一覧
1
occupies space and posses rest mass
matter
2
scientific idea that helps us under how particles behave in different states of matter
kinetic particle theory
3
Definite shape, Defrnite volume, Hign density , Rigidity
properties of solid
4
tightly packed togetner, nave Ittle space between them
particles of solid
5
Closely packed, have more Kinetic energy than solid particles.
liquid
6
characteristics than either be observed or measured
properties
7
depends on the amount of matter in a sample
extensive properties
8
depends on the type of matter in a sample.
intensive properties
9
can be observed or measured unthout changing identy
physical properties
10
it undergo chemical change
chemical properties
11
refers to the physical or chemical transformation
changes in matter
12
involve a change in ome or more physical properties
physical change
13
involve change in chemical composition.
chemical change
14
plant growth
chemical change
15
melting
physical change
16
basic building blocks of matter
atoms
17
pure subtance made up of only one type of atom
elemets
18
group of two or more atoms that are held together by chemical bonds
molecules
19
this is chemically bounded
compounds
20
this is not chemically bounded
mixture
21
composition is uniform throughout the mixture .
homogeneous mixture
22
Mixture in which the composition is not uniform throughout the mixture
heterogeneous mixture
23
Is a type of mixture in which one substance (the solute) is dissolved in another substance (the solvent)
solution
24
Are a type of mixtures where small particles of one substance are evenly dispersed throughout another substance Ex: milk, fog, smoke
colloids
25
Are type of mixtures in which solid particles are evenly dispersed throughout liquid
suspension
26
Process by which a substance changes from solid to liquid
melting
27
states that energy can neither be created nor be destroyed.
the law of conservation of energy
28
Process by which a substance changes from liquid to a solid
freezing
29
Process by which a substance changes from liquid to a gas at the boiling temperature of a substance
boiling
30
Process by which a liquid changes to a gas at temperatures lower than its boiling point.
evaporation
31
liquids that evaporate quickly at room temperature.
volitile liquids
32
Process by which a gas changes to liquid
condensation
33
Process by which a solid changes directly to a gas without going through a liquid state.
sublimation
34
Process by which a gas changes directly to a solid without going through a liquid state
deposition
35
Process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration
diffusion
36
used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass.
filtration
37
action of purifying a liquid by a process of heating and cooling
distillation
38
separates dissolved substance by different interactions with (that is travel through) a material
chromatography
39
the action or process using a centrifuge, typically to separate fluids of different densities or liquids from solids.
centrifugation
40
method of removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation.
cyclonic separation
41
repeating a particular measurement will usually not obtain precisely the same result.
significant figure
42
refers to the closeness of a set values obtained from identical measurement of something
precision
43
refers to the closeness of a single measurement to it’s true value
accuracy
44
Which of the following is the correct
order of getting salt from the mixture
of sand and salt?
Dissolving in water – filtration-evaporation
45
Dalton's Atomic Theory was proposed in the year
1808
46
Which of the following properties could NOT be used to distinguish table salt and table sugar?
color
47
Theory, matter s Composed dode
particles that are in motion.
tiny
48
Chromatography is best used to separate
ink component