Deck 3: Matter and Energy

Question 1

The melting of ice is a physical change.

Answer 1

True

Question 2

Liquid and gas molecules can easily be compressed,while in a solid the molecules are incompressible.

Answer 2

False

Question 3

Gases are the only form of matter that is easily compressible.

Answer 3

True

Question 4

Skim milk is a heterogeneous mixture.

Question 5

Air is a pure substance.

Question 6

Even with the most recent advances in microscopy,it is impossible to image an atom.

Question 7

Saltwater is a homogeneous mixture.

Question 8

The odor of gasoline is a chemical property.

Question 9

Solids have indefinite shape and volume.

Question 10

A compound is a substance that cannot be broken down into a simpler substance.

Question 11

In a solid substance,the atoms or molecules oscillate and vibrate about a fixed point.

Question 12

Matter is defined as anything that is visible to the human eye.

Question 13

Chemical properties of a substance are those that can be observed without changing the composition of a substance.

Question 14

Liquids have definite volume and indefinite shape.

Question 15

Sugar is a pure substance.

Question 16

Flammability of gasoline is a chemical property.

Question 17

An amorphous solid has long range,repeating order.

Question 18

Water is a mixture.

Question 19

In a chemical reaction,the substances present after the chemical change are called reactants.

Question 20

If a pure material decomposes when heated into simpler substances,this proves that the material was a compound.

Question 21

When a chemical "cold pack" is activated,the chemical reactants absorb heat from the surroundings.

Question 22

Temperature is defined as the transfer of thermal energy caused by a temperature difference.

Question 23

When a cold ice cube is dropped into a warm cup of water,energy is transferred as heat from the ice to the water.

Question 24

Like mass,energy can neither be created nor destroyed.

Question 25

The coldest temperature possible is 0 K.

Question 26

A moving bowling ball has kinetic energy.

Question 27

The process of boiling water is an endothermic process.

Question 28

Matter can be destroyed in a combustion reaction (such as burning fuel).

Question 29

A chemical change occurs when matter does not change its composition.

Question 30

An energy diagram that shows the products having higher energy than the reactants illustrates an endothermic reaction.

Question 31

When you dissolve solid sugar into water,this new solution will taste sweet.The sugar went through a chemical change.

Question 32

Temperature is simply a measure of the motion of atoms and molecules.

Question 33

Electrical energy is associated with the flow of electrical charge.

Question 34

An example of a chemical change is burning a wood log to give a pile of ashes.

Question 35

In physical changes,the atoms or molecules that compose the matter do not change their identity,even though the matter may change its appearance.

Question 36

Mixtures of miscible liquids that differ in their boiling points may be separated by distillation.

Question 37

The energy of position is called kinetic energy.

Question 38

The corrosion of iron is a physical change.

Question 39

A chemical change that will lower the potential energy of the chemical results in an endothermic reaction.

Question 40

A melting scoop of ice cream is an example of an exothermic process.

Question 41

When a temperature in degrees Celsius is converted to kelvins,the Kelvin value will have the same number of decimal places as the Celsius value.

Question 42

A solid form of matter in which there is long range repeating order is called ________.

A)amorphous
B)rigid
C)crystalline
D)fixed
E)none of the above

Question 43

Which state of matter has indefinite shape and is compressible?

A)liquid
B)solid
C)gas
D)plasma
E)none of the above

Question 44

Which among the following statements is false?

A)A solid has a definite shape and a definite volume.
B)A liquid has a definite volume;but it has no definite shape.
C)A gas has neither definite volume nor definite shape.
D)Both solids and liquids are incompressible while gases are compressible.
E)none of the above

Question 45

Which state of matter has atomic spacing that is far apart and definite shape?

A)liquid
B)solid
C)gas
D)plasma
E)none of the above

Question 46

Absolute zero is equivalent to a temperature of -273 K.

Question 47

Which of the following is NOT an example of matter?

A)a pencil eraser
B)a balloon full of helium
C)a dust particle
D)heat from a burning candle
E)none of the above

Question 48

The temperature of 0°F is colder than the temperature of 0°C.

Question 49

The large heat capacity of water limits large fluctuations in temperature near bodies of water during the summer months.

Question 50

Which state of matter has atomic spacing that is close together and definite shape?

A)liquid
B)solid
C)gas
D)plasma
E)none of the above

Question 51

Temperatures reported in the Kelvin scale cannot be negative.

Question 52

Which of the following is an example of a crystalline solid that shows an arrangement of long-range,repeating order?

A)glass
B)salt
C)plastic
D)rubber
E)none of the above

Question 53

The heat capacity of a substance is the quantity of thermal heat required to change the temperature of a given amount of the substance by 100°C.

Question 54

Which of the following items is a mixture?

A)water
B)helium
C)brass
D)sugar
E)none of the above

Question 55

Which of the following statements about matter is FALSE?

A)Matter occupies space and has mass.
B)Matter exists in either a solid,liquid or gas state.
C)Matter is ultimately composed of atoms.
D)Matter is smooth and continuous.
E)none of the above

Question 56

The amount of heat energy needed to increase the temperature of an object will vary depending on the heat capacity of the object.

Question 57

A pure substance is:

A)composed of two or more different types of atoms or molecules combined in variable proportions.
B)composed of only one type of atom or molecule.
C)composed of two or more regions with different compositions.
D)composed of two or more different types of atoms or molecules that has constant composition.
E)none of the above

Question 58

A kelvin degree is the same size as a Celsius degree.

Question 59

Which of the following items is a pure substance?

A)air
B)seawater
C)brass
D)ice
E)none of the above

Question 60

Which state of matter has atomic spacing that is close together and indefinite shape?

A)liquid
B)solid
C)gas
D)plasma
E)none of the above

Question 61

If you hold a solid piece of pure gallium metal in your hand,your body heat will melt the gallium into its liquid form.This illustrates which of the following?

A)distillation
B)physical change
C)chemical change
D)chemical property
E)none of the above

Question 62

All of the following can be considered physical properties EXCEPT:

A)taste.
B)color.
C)flammability.
D)density.
E)boiling point.

Question 63

Which of the following is NOT a technique that could be used to separate a mixture into its components?

A)stirring
B)decanting
C)filtration
D)distillation
E)none of the above

Question 64

Which of the following is NOT an example of a physical property?

A)Solid ice can be very brittle.
B)Water can freeze solid at 32 degrees Fahrenheit.
C)Water can form hydrogen and oxygen gas under electrolysis conditions.
D)Liquid water can turn into steam in a heated tea kettle.
E)none of the above

Question 65

Which of the following is a homogeneous mixture?

A)trail mix
B)stainless steel
C)water
D)molten iron
E)none of the above

Question 66

Which of the following statements about physical and chemical changes is FALSE?

A)In a chemical change,matter changes its composition.
B)In a physical change,matter does not change its composition.
C)Phase changes are always physical changes.
D)Chemical reactions are chemical changes.
E)All of the above statements are true.

Question 67

Physical properties are:

A)those that a substance displays only through changing its composition.
B)those that cause atoms and molecules to change.
C)those that a substance displays without changing its composition.
D)identical for all solid matter.
E)none of the above

Question 68

Which of the following statements about compounds is TRUE?

A)A substance that cannot be broken down into simpler substances.
B)A pure substance that has variable composition throughout.
C)A substance composed of two or more elements in fixed,definite proportions.
D)A substance that is not as common as pure elements.
E)none of the above

Question 69

When methane is burned with oxygen the products are carbon dioxide and water.If you produce 36 grams of water and 44 grams of carbon dioxide from 16 grams of methane,how many grams of oxygen were needed for the reaction?

A)32
B)80
C)96
D)64
E)none of the above

Question 70

When methane is burned with oxygen,the products are carbon dioxide and water.If you produce 9 grams of water and 11 grams of carbon dioxide from 16 grams of oxygen,how many grams of methane were needed for the reaction?

A)4
B)20
C)31
D)40
E)none of the above

Question 71

Which of the following statements about energy is FALSE?

A)An object possessing energy can do work on another object.
B)Energy can neither be created nor destroyed.
C)Energy is the single main component of the universe.
D)Energy is the capacity to do work.
E)All of the above statements are true.

Question 72

How would you classify raisin bran?

A)pure substance-compound
B)mixture-heterogeneous
C)pure substance-element
D)mixture-homogeneous
E)none of the above

Question 73

Which of the following items is a chemical property?

A)the paint color on a new red Corvette
B)the odor of spearmint gum
C)the melting and boiling point of water
D)the tarnishing of a copper statue
E)none of the above

Question 74

A solution is an example of a (an):

A)pure substance.
B)element.
C)compound.
D)homogeneous mixture.
E)heterogeneous mixture.

Question 75

Which of the following items is a physical property?

A)the corrosive action of acid rain on granite
B)the odor of spearmint gum
C)the combustion of gasoline
D)the tarnishing of a copper statue
E)none of the above

Question 76

Which of the following statements is FALSE?

A)Matter may be a pure substance or it may be a mixture.
B)A pure substance may either be an element or a compound.
C)A mixture may be either homogeneous or heterogeneous.
D)Mixtures may be composed of two or more elements,two or more compounds,or a combination of both.
E)All of the above statements are true.

Question 77

When methane is burned with oxygen,the products are carbon dioxide and water.If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen,how many grams of carbon dioxide were produced in the reaction?

A)40
B)22
C)58
D)18
E)none of the above

Question 78

How would you classify sugar?

A)pure substance-compound
B)mixture-heterogeneous
C)pure substance-element
D)mixture-homogeneous
E)none of the above

Question 79

How would you classify salt water?

A)pure substance-compound
B)mixture-heterogeneous
C)pure substance-element
D)mixture-homogeneous
E)none of the above

Question 80

Which of the following is a heterogenous mixture?

A)milk
B)sugar water
C)raisin bran
D)air
E)none of the above