7333353
Descrição
Quiz por Cecilia Bui, atualizado more than 1 year ago
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Criado por Cecilia Bui
quase 8 anos atrás
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Questão 1
Questão
Which state of matter is characterized by having a definite shape and a definite volume?
Responda
-
gas
-
liquid only
-
solid only
-
both b and c
Questão 2
Questão
[blank_start]distillation[blank_end] - a process in which a liquid is boiled to produce a vapor that is condensed into a liquid
Responda
-
distillation
-
mass
-
chemical reaction
-
compound
-
element
-
homogeneous
Questão 3
Questão
[blank_start]mass[blank_end] - amount of matter an object contains
Responda
-
mass
-
chemical reaction
-
compound
-
distillation
-
element
-
homogeneous
Questão 4
Questão
[blank_start]compound[blank_end] - composed of two or more substances chemically combined in a fixed proportion
Responda
-
compound
-
mass
-
chemical reaction
-
element
-
homogeneous
-
distillation
Questão 5
Questão
[blank_start]homogeneous[blank_end] - describes mixture with a uniform composition
Responda
-
homogeneous
-
element
-
compound
-
distillation
-
mass
-
chemical reaction
Questão 6
Questão
[blank_start]element[blank_end] - substance that cannot be changed into simpler substances by chemical means
Responda
-
element
-
compound
-
homogeneous
-
distillation
-
mass
Questão 7
Questão
[blank_start]chemical reaction[blank_end] - process in which substances are changed into different substances
Responda
-
chemical reaction
-
mass
-
compound
-
element
-
homogeneous
Questão 8
Questão
[blank_start]vapor[blank_end] - gaseous state of substance that is a liquid or solid at room temperature
Responda
-
vapor
-
product
-
phase
-
reactant
-
heterogeneous mixture
Questão 9
Questão
[blank_start]reactant[blank_end] - starting substance in a chemical reaction
Responda
-
reactant
-
product
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phase
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vapor
-
mixture
Questão 10
Questão
[blank_start]product[blank_end] - a substance formed in a chemical reaction
Responda
-
product
-
mixture
-
vapor
-
reactant
-
heterogeneous mixture
Questão 11
Questão
[blank_start]mixture[blank_end] - a physical blend of two or more components
Responda
-
mixture
-
vapor
-
heterogeneous mixture
-
product
-
reactant
-
phase
Questão 12
Questão
[blank_start]phase[blank_end] - part of a sample having uniform composition and properties
Responda
-
phase
-
mixture
-
reactant
-
product
-
vapor
Questão 13
Questão
[blank_start]heterogeneous mixture[blank_end] - not uniform in composition
Responda
-
heterogeneous mixture
-
mixture
-
product
-
phase
-
vapor
Questão 14
Questão
What do chemical symbols and formulas represent, respectively?
Responda
-
elements and ions
-
compounds and mixtures
-
elements and compounds
-
atoms and mixtures
Questão 15
Questão
Which of the following represents a compound?
Responda
-
H2O
-
H-3
-
H
-
O-16
Questão 16
Questão
Which state of matter expands when heated and is easy to compress?
Responda
-
gas
-
liquid only
-
solid only
-
both b and c
Questão 17
Questão
which of the following may have more than one phase?
Responda
-
a pure liquid
-
a heterogeneous mixture
-
a pure solid
-
a homogeneous mixture
Questão 18
Questão
The chemical symbol for iron is ___.
Responda
-
fe
-
Fe
-
FE
-
Ir
Questão 19
Questão
Which of the following is a homogeneous mixture?
Responda
-
oil in vinegar
-
pasta in water
-
muddy water
-
alcohol in water
Questão 20
Questão
In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?
Responda
-
sucrose
-
heat
-
water
-
carbon dioxide
Questão 21
Questão
An example of an extensive property of matter is
Responda
-
hardness
-
temperature
-
mass
-
pressure
Questão 22
Questão
When an iron nail is ground into powder, its mass ___.
Responda
-
stays the same
-
decreases
-
increases
-
cannot be determined
Questão 23
Questão
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
Responda
-
both a physical change and a chemical change
-
a chemical change
-
neither a physical change nor a chemical change
-
a physical change
Questão 24
Questão
The chemical formula of a compound indicates?
Responda
-
the source of the elements in the compound
-
the alchemy symbols for the elements in the compound
-
how elements are joined in the compound to form crystal
-
the relative proportions of the elements in the compound
Questão 25
Questão
Which of the following is a physical change?
Responda
-
rotting of food
-
corrosion
-
explosion
-
evaporation
Questão 26
Questão
Which of the following processes involves a change in physical properties?
Responda
-
burning
-
boiling
-
fermenting
-
rusting
Questão 27
Questão
Which of the following can be classified as a mixture?
Responda
-
pure gold
-
pure air
-
pure water
-
pure nitrogen
Questão 28
Questão
Which of the following is a physical property?
Responda
-
ability to rust
-
combustible
-
explosive
-
melting point
Questão 29
Questão
A chemical change occurs when a piece of wood
Responda
-
is painted
-
decays
-
is cut
-
splits
Questão 30
Questão
What must occur for a change to be a chemical reaction?
Responda
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There must be a change in physical properties.
-
The change must involve a change in mass.
-
There must be a change in composition which changes the chemical properties.
-
The change must involve a change in volume.
Questão 31
Questão
What distinguished a substance from a mixture?
Responda
-
Samples of the same substances can have different intensive properties.
-
Substances are compounds, and mixtures are not.
-
Mixtures are groupings of elements, and compounds are not.
-
The composition of substances cannot vary, while the composition of mixtures can.
Questão 32
Questão
Which of the following is a homogeneous mixture?
Responda
-
beef stew
-
sand and water
-
salt water
-
soil
Questão 33
Questão
A substance that can be separated into two or more substances only by a chemical change is a(n) ___.
Responda
-
mixture
-
element
-
solution
-
compound
Questão 34
Questão
Which of the following is a physical property of a substance in the liquid state?
Responda
-
definite shape
-
definite volume
-
not easily compressed
-
indefinite
Questão 35
Questão
Which state off matter takes both the shape and volume of its container?
Responda
-
solid
-
liquid only
-
gas only
-
both b and c
Questão 36
Questão
Which of the following involves a chemical change?
Responda
-
mixing
-
decomposing
-
melting
-
grinding
Questão 37
Questão
Separating a solid from a liquid by evaporating the liquid is called ___.
Responda
-
filtration
-
distillation
-
condensation
-
solution
Questão 38
Questão
Which of the following is a chemical property?
Responda
-
freezing point
-
hardness
-
color
-
ability to react with oxygen
Questão 39
Questão
Which state of matter is characterized by having an indefinite shape, but a definite volume?
Responda
-
gas
-
liquid only
-
solid only
-
both b and c
Questão 40
Questão
What is one difference between a mixture and a compound?
Responda
-
A mixture must be uniform in composition.
-
A mixture can only be separated into its components by chemical means.
-
A compound consists of more than one phase.
-
A compound can only be separated into its components by chemical means.
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