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Chemistry-Unit 1 Matter

STUDY
PLAY
What is not an example of matter?
air
heat
smoke
water vapor
heat
a golf ball has more mass than a tennis ball becuase it....
contains more matter
an example of an extensive property of matter is...
temperature
pressure
mass
hardness
mass
all of following are physical properties of matter except....
mass
color
melting point
ability to rust
ability to rust
which of the following is NOT a physical property of matter?
It has a boiling point of 100'C
Its a colorless liquid
It is composed of hydrogen and oxygen
sugar dissolves it
it is composed of hydrogen and oxygen
which of the following are considered physical properties of a substance?
-color and odor
-melting and boiling points
-malleability and hardness
-all of the above
all of the above
a vapor is what state of matter
gas
a substance that forms a vapor is generally in what physical state at room temperature
liquid or solid
what state of matter has a definite volume and takes the shape of its container
liquid
which state of matter takes both the shape and volume of its container
gas
which state of matter is characterized by having an indefinite shape , but a definite volume
liquid
which state of matter is characterized by having a definite shape and definite volume
solid
which state of matter expands when heated and is easy to compress
gas
all of the following are physical properties of a substance in the liquid except?
indefinite volume
definite mass
not easily compressed
indefinite shape
indefinite volume
which of the following is a physical change?
corrosion
explosion
evaporation
rotting of food
evaporation
which of the following cannot be classified as a substance?
table salt
air
nitrogen
gold
air
which of the following is a heterogeneous mixture
air
salt water
steel
soil
soil
which of the following cannot be considered a single phase?
a pure solid
a pure liquid
a homogeneous mixture
a heterogeneous mixture
a heterogeneous mixture
which of the following is true about homogeneous mixtures?
They are known as solutions
they consist of two or more phases
-they have composistions that never vary
they are always liquids
they are known as solutions
Which of the following is a heterogeneous mixture?
A) vinegar in water
B) milk
C) oil and vinegar
D) air
oil and vinegar
Which of the following is a homogeneous mixture?
A) salt water
B) beef stew
C) sand and water
D) soil
salt water
Separating a solid from a liquid by evaporating the liquid is called ____.
A) filtration
B) condensation
C) solution
D) distillation
distillation
An example of a homogeneous mixture is ____.
A) water
B) stainless steel
C) noodle soup
D) oxygen
stainless steel
Which of the following items is NOT a compound?
A) baking soda
B) salad dressing
C) sucrose
D) table salt
salad dressing
Which of the following is true about compounds?
A) They can be physically separated into their component elements.
B) They have compositions that vary.
C) They are substances.
D) They have properties similar to those of their component elements
they are substances
A substance that can be separated into two or more substances only by a chemical change is a(n) ____.
A) solution
B) element
C) mixture
D) compound
compound
Which of the following materials is a substance?
A) air
B) gasoline
C) stainless steel
D) silver
silver
What is one difference between a mixture and a compound?
A) A compound consists of more than one phase.
B) A compound can only be separated into its components by chemical means.
C) A mixture can only be separated into its components by chemical means.
D) A mixture must be uniform in composition.
a compound can only be separated into its components by chemical means
What distinguishes a substance from a mixture?
A) Substances are compounds, and mixtures are not.
B) Mixtures are groupings of elements, and compounds are not.
C) Samples of the same substance can have different intensive properties.
D) Mixtures can be separated physically, while compounds cannot.
mixtures can be separated physically, while compounds cannot
Which of the following is a chemical property?
A) color
B) hardness
C) freezing point
D) ability to react with oxygen
ability to react with oxygen
Which of the following is NOT a physical change?
A) grating cheese
B) melting cheese
C) fermenting of cheese
D) mixing two cheeses in a bowl
fermenting of cheese
Which of the following does NOT involve a physical change?
A) mixing
B) melting
C) grinding
D) decomposing
decomposing
Which of the following processes does NOT involve a change in chemical properties?
A) rusting
B) fermenting
C) boiling
D) burning
boiling
A chemical change occurs when a piece of wood ____.
A) is split
B) is painted
C) decays
D) is cut
decays
Which of the following is a chemical property of water at 4C?
A) its color
B) its state
C) its temperature
D) its ability to decompose into hydrogen and oxygen
its ability to decompose into hydrogen and oxygen
What must be done to be certain that a chemical change has taken place?
A) Check for the production of bubbles before and after the change.
B) Demonstrate that a release of energy occurred after the change.
C) Check the composition of the sample before and after the change.
D) Demonstrate that energy was absorbed by the reactants after the change
check the composition of the sample before and after the change
Which of the following does NOT involve a physical change?
A) mixing
B) melting
C) grinding
D) decomposing
decomposing
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
A) a physical change
B) a chemical change
C) neither a physical change nor a chemical change
D) both a physical change and a chemical change
a chemical change
Which of the following indicates that a chemical change has happened during cooking?
A) The food darkens.
B) Bubbles form in boiling water.
C) Butter melts.
D) Energy is transferred from the stove to a pan.
the food darkens
Which of the following does NOT indicate that a chemical change may have taken place?
A) fracture formation
B) gas production
C) precipitate formation
D) energy transfer
fracture formation
Which action changes the identity of the substance referenced?
A) melting gold
B) running an electric current through copper
C) corroding iron
D) breaking an ice cube
corroding iron
What happens to matter during a chemical reaction?
A) Matter is neither destroyed or created.
B) Some matter is destroyed.
C) Some matter is created.
D) Some matter is destroyed and some is created.
matter is neither destroyed or created
Which of the following is true for all chemical reactions?
A) The total mass of the reactants increases.
B) The total mass of the products is greater than the total mass of the reactants.
C) The total mass of the products is less than the total mass of the reactants.
D) The total mass of the reactants equals the total mass of the products.
the total mass of the reactants equals the total mass of the products
When an iron nail is ground into powder, its mass ____.
A) stays the same
B) decreases
C) increases
D) cannot be determined
stays the same