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LMyT STAGE 1 Review Flashcards | StudBud
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LMyT STAGE 1 Review
LMyT STAGE 1 Review
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#Review #Stage 1: #Structure of matter
Flashcards
37 cards
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Practice quiz
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Questions
37
Answers
1
the change of state shown in the image
deposition
freezing
sublimation
melting
2
In this state particles are ionized there are highly charged particles with high kinetic energy
plasma
gas
BEC
solid
3
Are examples of physical properties, except:
malleability
Color
combustion capacity
melting point
4
composed of two or more elements and always combined in the same proportion
heterogeneous mixture
element
compound
homogeneous mixture
5
the process shown in the image...
evaporation
condensation
melting
freezing
6
Identify the chemical change
boiling water
fermentation of milk
sharpening a pencil
breaking a glass
7
Is defined as the ability of a body to perform work
matter
science
Pure substances
energy
8
Is the type of energy that is stored in the chemical bonds
chemical
thermal
kinetic
nuclear
9
Contain two or more different substances that are physically mixed but not chemically combined
mixture
element
compound
isotope
10
Chemistry is considered the central science, because has relation with many other sciences like physics, math, biology
False
True
11
All are pure substances, except...
Sulfuric acid
Iron
Bronze
Carbon
12
can be observed or measured without affecting the identity of a substance
chemical property
radioactivity
reactivity
physical property
13
The following examples are homogeneous mixtures, except...
sea water
wine
aluminum
air
14
If you have a mixture of flour and water, the best method for separate the components is:
evaporation
cromatography
filtration
magnetism
15
Is a method used to separate heterogeneous mixtures
cromatography
evaporation
decantation
distillation
16
Ancient civilization that made contributions to chemistry like paper, ceramics, gunpowder, etc.
Alchemists
Egypt
Greece
China
17
composed of one type of atom, cannot be separated into simpler substances
compound
heterogeneous mixture
homogeneous mixture
element
18
Particles are really close together, it has definite shape and volume
BEC
liquid
solid
Plasma
19
what change of state is shown in the figure?
sublimation
freezing
deposition
condensation
20
Coal, natural gas, biofuels and petroleum are considered Non-renewable sources of energy
True
False
21
Have a fixed composition
Colloids
Pure substances
Separation methods
Mixtures
22
The state of matter represented in the picture
gas
solid
plasma
liquid
23
Are sources of clean energy, Except:
Biomass
natural gas
Wind
Solar
24
What is true about the following graph?
is a heating curve
at 0oC the substance will be a solid
the boiling point is 85oC
the freezing point is -15oC
25
______ is related with chemistry in developing compounds for the treatment of diseases
agriculture
biology
medicine
math
26
Is considered the father of modern chemistry, proposed the law of conservation of matter
Lavoisier
Dalton
Proust
Paracelsus
27
Elements and compounds are pure substances, so they cannot be separated into simpler substances
TRUE
FALSE
28
Science that studies the composition, structure, properties and changes of
matter.
Chemistry
Biology
Math
Physics
29
Is a chemical property
oxidation capacity
density
melting point
malleability
30
In the heterogeneous mixture
two or more phases can be distinguished
components can be separated by electrolysis
components can be separated by distillation
the molecules are chemically combined
31
Both elements and compounds can be represented chemically through a formula
FALSE
TRUE
32
In the deposition process...
is necessary to increase the temperature
the substance passes from gas to solid
the substance passes from solid to gas
the molecules move faster
33
The process shown in the picture represents:
decantation
distillation
cromatography
filtration
34
Using the following image, determine the melting point of iron
00C
15000C
35000C
28000C
35
In the heating curve of the image, the section 4 represents
melting
solid
liquid
boiling
36
When a substance passes from liquid to gas...
the 3 states of matter are present at the same time
condensation begins
the molecules acquire more kinetic energy
the temperature decreases
37
Change of state from liquid to gas
evaporation
freezing
deposition
condensation
