The average of the masses of all occurring isotopes of an element

Matter with a uniform and definite composition

What is the boiling point?

when vapor pressure of a liquid equals the pressure surrounding the liquid

a substance changing directly from a solid to a gas

What is a group in the periodic table?

A vertical column in the periodic table

What is thermal energy?

The total energy of motion of the particles in a substance

What is condensation?

The change of a substance from a gas to a liquid

A measure of the force of gravity acting on an object's mass

What is the melting point?

The temperature at which a solid changes to a liquid

A state of matter that has a definite shape and volume

A state of matter that has no definite shape and no definite volume

A positively charged subatomic particle located in the nucleus of an atom

A neutral (uncharged) subatomic particle located in the nucleus of an atom

What is vaporization?

The change of a substance from a liquid to a gas

The amount of space that matter occupies

What is the freezing point?

The temperature at which a liquid changes to a solid

A measure of the amount of matter in an object

The total number of protons and neutrons in the nucleus of an atom

What is Charles’s Law?

the volume of the gas is directly proportional to the gas at RTP

The force exerted per unit area

A substance made up of two or more different elements chemically combined

What is a physical change?

Changing of appearance not chemical makeup

The positively charged center of an atom containing protons and neutrons

A state of matter that has a definite volume but no definite shape

The smallest unit of an element that retains its chemical identity

A combination of two or more substances that are physically combined

A particle made up of two or more atoms held together by chemical bonds

What is Boyle’s Law?

fixed mass of gas at RTP the volume of the gas is inversely proportional

What is a chemical symbol?

A one- or two-letter abbreviation used to represent an element

What is a period in the periodic table?

A horizontal row in the periodic table

An element that is shiny, malleable, ductile, and a good conductor

What is an energy level?

The area around the nucleus of an atom where electrons are found

What is conservation of mass?

Matter cannot be created or destroyed in a physical or chemical change

Atoms of the same element with the same number of protons not neutrons

What is a chemical change?

A change in which substances are transformed into new substances

The ability of a metal to be hammered or rolled into thin sheets

What is atomic number?

The number of protons in the nucleus of an atom of an element

A measure of the average kinetic energy of the particles in a substance

A pure substance that cannot be broken down into simpler substances

The ratio of the mass of a substance to its volume

Anything that has mass and takes up space

What is a physical property?

A characteristic observed without changing the substance's composition

What is the periodic table?

An arrangement of the elements in order of increasing atomic number

The gradual change of a liquid to a gas at the surface of the liquid

What is a chemical property?

The ability to undergo a specific chemical change

A negatively charged subatomic particle that orbits the nucleus of an atom

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Fundamentals of Chemistry

46 termsStudBud Administration1 play

Explore essential concepts in chemistry through a series of questions covering matter, atoms, elements, compounds, and more.

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Questions 46

Answers

1
What is atomic mass?
The number of neutrons in an atom
The average of the masses of all occurring isotopes of an element
The number of protons in an atom
The total mass of an atom
2
What is a substance?
A type of physical property
Matter with a uniform and definite composition
Only elements
Any mixture of elements
3
What is the boiling point?
The temperature at which a gas condenses
The temperature at which a substance evaporates
The temperature at which a solid melts
when vapor pressure of a liquid equals the pressure surrounding the liquid
4
What is sublimation?
The change of a substance that does not involve temperature
a substance changing directly from a solid to a gas
The change of a substance from a liquid to a gas
The change of a substance from a gas to a liquid
5
What is a group in the periodic table?
A group of similar compounds
A measure of atomic mass
A vertical column in the periodic table
A horizontal row in the periodic table
6
What is thermal energy?
The energy that cannot change
The total energy of motion of the particles in a substance
The energy that only applies to solids
The energy stored in chemical bonds
7
What is condensation?
The change of a substance that does not involve temperature
The change of a substance from a gas to a liquid
The change of a substance from a solid to a gas
The change of a substance from a liquid to a gas
8
What is weight?
The density of a substance
A measure of the force of gravity acting on an object's mass
The volume of an object
The mass of an object
9
What is the melting point?
The temperature at which a liquid changes to a solid
The temperature at which a gas condenses
The temperature at which a solid changes to a liquid
The temperature at which a substance evaporates
10
What is a solid?
A state of matter with no definite shape
A state of matter that has a definite shape and volume
A state of matter that cannot change
A state of matter that is always liquid
11
What is a gas?
A state of matter that cannot change
A state of matter with a definite shape
A state of matter that is always liquid
A state of matter that has no definite shape and no definite volume
12
What is a proton?
A positively charged subatomic particle located in the nucleus of an atom
A particle that cannot be divided
A neutral particle in the nucleus
A negatively charged particle in the nucleus
13
What is a neutron?
A neutral (uncharged) subatomic particle located in the nucleus of an atom
A negatively charged particle in the nucleus
A positively charged particle in the nucleus
A particle that cannot be divided
14
What is vaporization?
The change of a substance from a solid to a gas
The change of a substance from a gas to a liquid
The change of a substance that does not involve temperature
The change of a substance from a liquid to a gas
15
What is volume?
The mass of an object
The density of a substance
The amount of space that matter occupies
The weight of an object
16
What is the freezing point?
The temperature at which a gas condenses
The temperature at which a solid melts
The temperature at which a substance evaporates
The temperature at which a liquid changes to a solid
17
What is mass?
The volume of an object
The density of a substance
A measure of the amount of matter in an object
The weight of an object
18
What is mass number?
The total number of electrons in an atom
The total number of protons and neutrons in the nucleus of an atom
The number of protons in an atom
The total mass of an atom
19
What is Charles’s Law?
fixed mass of gas RTP and the volume of the gas is inversely proportional
fixed mass of a gas changes temp, the pressure & the gas remains constant
fixed mass of gas with varying pressures, the gas volume remains constant
the volume of the gas is directly proportional to the gas at RTP
20
What is pressure?
The force exerted per unit area
The weight of an object
The mass of an object
The volume of a substance
21
What is a compound?
A single type of atom
A physical property of matter
A substance made up of two or more different elements chemically combined
A mixture of different substances
22
What is a physical change?
A change that involves chemical bonds
Changing of appearance not chemical makeup
A change that only applies to solids
A change that results in new substances being formed
23
What is a nucleus?
A particle that cannot be divided
The outer region of an atom
The positively charged center of an atom containing protons and neutrons
A type of molecule
24
What is a liquid?
A state of matter that has a definite volume but no definite shape
A state of matter that cannot change
A state of matter that is always solid
A state of matter with a definite shape
25
What is an atom?
A type of molecule
The smallest unit of an element that retains its chemical identity
A particle that cannot be divided
A combination of different elements
26
What is a mixture?
A combination of two or more substances that are physically combined
A type of chemical bond
A single element
A substance with a uniform composition
27
What is a molecule?
A single atom of an element
A compound that cannot be broken down
A particle made up of two or more atoms held together by chemical bonds
A type of physical property
28
What is Boyle’s Law?
fixed mass of gas @ varying pressures, the vol. of e gas remains constant
fixed mass of gas at varying temp the pressure of the gas remains constant
fixed mass of gas at RTP the volume of the gas is inversely proportional
fixed mass of gas @ constant pressure w/gas volumes directly proportional
29
What is a chemical symbol?
A one- or two-letter abbreviation used to represent an element
A type of chemical bond
A number that indicates the mass of an atom
A measure of the volume of a substance
30
What is a period in the periodic table?
A group of similar elements
A measure of atomic mass
A vertical column in the periodic table
A horizontal row in the periodic table
31
What is a metal?
An element that is dull and brittle
An element that cannot conduct electricity
An element that is shiny, malleable, ductile, and a good conductor
An element that is always a gas
32
What is an energy level?
A measure of the density of a substance
The area around the nucleus of an atom where electrons are found
A measure of the mass of an atom
A measure of the volume of an atom
33
What is conservation of mass?
Matter cannot be created or destroyed in a physical or chemical change
Only solids conserve mass
Mass is irrelevant in chemical reactions
Mass can change during a chemical reaction
34
What is an isotope?
Atoms of the same element with the same number of protons not neutrons
Atoms of different elements
Atoms with the same mass number
Atoms that cannot be divided
35
What is a chemical change?
A change that does not involve chemical bonds
A change that only applies to physical properties
A change that only occurs in gases
A change in which substances are transformed into new substances
36
What is malleable?
The ability of a metal to be hammered or rolled into thin sheets
The ability of a metal to conduct electricity
The ability of a metal to be a gas
The ability of a metal to be brittle
37
What is atomic number?
The number of protons in the nucleus of an atom of an element
The number of electrons in an atom
The total number of neutrons in an atom
The total mass of an atom
38
What is temperature?
A measure of the volume of a substance
A measure of the mass of an object
A measure of the density of a substance
A measure of the average kinetic energy of the particles in a substance
39
What is an element?
A mixture of different substances
A type of compound
A pure substance that cannot be broken down into simpler substances
A particle made of two or more atoms
40
What is density?
The weight of an object
The ratio of the mass of a substance to its volume
The amount of space an object occupies
The measure of a substance's reactivity
41
What is matter?
A substance that cannot change
Anything that has mass and takes up space
Only solid objects
Only liquids and gases
42
What is a physical property?
A characteristic observed without changing the substance's composition
A measure of a substance's reactivity
A characteristic that describes a chemical change
A property that only applies to solids
43
What is the periodic table?
A list of all known compounds
A table of physical properties
An arrangement of the elements in order of increasing atomic number
A chart of chemical reactions
44
What is evaporation?
The rapid change of a liquid to a gas
The change of a substance from a gas to a liquid
The gradual change of a liquid to a gas at the surface of the liquid
The change of a substance that does not involve temperature
45
What is a chemical property?
The ability to undergo a specific chemical change
A measure of a substance's mass
A property that only applies to gases
A property that can be measured without changing the substance
46
What is an electron?
A particle that cannot be divided
A negatively charged subatomic particle that orbits the nucleus of an atom
A positively charged particle in the nucleus
A neutral particle in the nucleus

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