Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
Chemistry _ __________ is the study of matter.
Matter _ ___________ is anything that has mass and takes up physical
space, and it is everywhere around you.
atoms Matter is composed of ____________ , the smallest units of
matter that retain their chemical properties.
composition, properties, and When chemists study matter, they study its ___________ ,
transformations _________________, and _________ _.
central science Chemistry is regarded as a _________ _. It connects biology,
medicine, earth science, environmental science, geology,
physics, and mathematics.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
,Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
Mass _ ____________ is a measure of the amount of matter that an
object contains, and though many people use the terms
interchangeably, mass is not the same as weight. Mass is
essentially constant, while weight is affected by gravitational
pull.
Volume _ ____________ is the amount of physical space a substance
or object occupies. When you measure liquid ingredients for a
recipe, you measure the amount of space the liquid fills.
1. Pure substance Matter can be divided into 2 categories:
2. Mixture
pure substance 2 categories of matter
A _______________ , also referred to as a substance, has
constant composition and is made up of a single type of
element or compound.
mixture 2 categories of matter
A _________________ is the physical combination of two or
more substances
subatomic particles The components of an atom are referred to as
_ ______________ and include the electron, proton, and
neutron.
1. Electron What are the component of an atom?
2. Proton
3. Neutron
Elements _ _____________ are composed of a single type of atom,
either as a single atom or chemically bonded together.
periodic table The ___________________ displays all known elements
according to similarities between elements' properties.
Matter What makes up all of the material in the universe?
Mixtures
Elements
Matter
Pure substances
periodic table _ _____________ a chart that displays all the known elements
according to the similarities between elements' properties.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
,Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
1. uniform pure substances matter can be classified into two broad categories:
2. mixtures.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
, Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
pure substance A __________ is a form of matter that has a constant
composition (meaning that it is the same everywhere) and
properties that are constant throughout the sample. Pure
substances can either be elements or compounds. Aluminum,
from which soda cans are made, is an example of a pure
substance that is also considered an element. A sample of
aluminum would contain only aluminum atoms, all of which are
arranged (ordered) in the same way throughout the sample.
compound A substance made up of two or more different elements
chemically bonded together is called a _____________ _.
___________ are pure substances as they have uniform and
definite composition. An example of a compound would be
ordinary (non-iodized) table salt, also called sodium chloride.
All samples of sodium chloride are chemically identical with
the same ratio of sodium to chlorine. Another example would
be water, a compound consisting of two elements: hydrogen
and oxygen.
118 there are about ___________ elements in the known universe.
Mixtures _____________ are the second category of matter and are a
physical blend of two or more pure substances, each of which
retains its own identity and properties in the mixture, like the
salt water example. Only the form of the salt changes when it
is dissolved into water. It retains its composition and
properties.
1. Homogenous mixture What are the 2 types of mixtures?
2. Heterogeneous mixture
homogeneous mixture 2 types of mixtures
A _______________ is a mixture whose composition is uniform
throughout the mixture. The salt water described above is
homogeneous because the dissolved salt is evenly distributed
throughout the entire salt water sample. in the ____________________
of salt water, the amount of salt in the salt water can vary from
one sample to another.
heterogeneous mixture 2 types of mixtures
A __________________ is a mixture in which the composition is
not uniform throughout the mixture. Vegetable soup is a
_____________ _. Any given spoonful of soup will contain
varying amounts of the different vegetables and other
components of the soup.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
Chemistry _ __________ is the study of matter.
Matter _ ___________ is anything that has mass and takes up physical
space, and it is everywhere around you.
atoms Matter is composed of ____________ , the smallest units of
matter that retain their chemical properties.
composition, properties, and When chemists study matter, they study its ___________ ,
transformations _________________, and _________ _.
central science Chemistry is regarded as a _________ _. It connects biology,
medicine, earth science, environmental science, geology,
physics, and mathematics.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
,Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
Mass _ ____________ is a measure of the amount of matter that an
object contains, and though many people use the terms
interchangeably, mass is not the same as weight. Mass is
essentially constant, while weight is affected by gravitational
pull.
Volume _ ____________ is the amount of physical space a substance
or object occupies. When you measure liquid ingredients for a
recipe, you measure the amount of space the liquid fills.
1. Pure substance Matter can be divided into 2 categories:
2. Mixture
pure substance 2 categories of matter
A _______________ , also referred to as a substance, has
constant composition and is made up of a single type of
element or compound.
mixture 2 categories of matter
A _________________ is the physical combination of two or
more substances
subatomic particles The components of an atom are referred to as
_ ______________ and include the electron, proton, and
neutron.
1. Electron What are the component of an atom?
2. Proton
3. Neutron
Elements _ _____________ are composed of a single type of atom,
either as a single atom or chemically bonded together.
periodic table The ___________________ displays all known elements
according to similarities between elements' properties.
Matter What makes up all of the material in the universe?
Mixtures
Elements
Matter
Pure substances
periodic table _ _____________ a chart that displays all the known elements
according to the similarities between elements' properties.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
,Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
1. uniform pure substances matter can be classified into two broad categories:
2. mixtures.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
, Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
pure substance A __________ is a form of matter that has a constant
composition (meaning that it is the same everywhere) and
properties that are constant throughout the sample. Pure
substances can either be elements or compounds. Aluminum,
from which soda cans are made, is an example of a pure
substance that is also considered an element. A sample of
aluminum would contain only aluminum atoms, all of which are
arranged (ordered) in the same way throughout the sample.
compound A substance made up of two or more different elements
chemically bonded together is called a _____________ _.
___________ are pure substances as they have uniform and
definite composition. An example of a compound would be
ordinary (non-iodized) table salt, also called sodium chloride.
All samples of sodium chloride are chemically identical with
the same ratio of sodium to chlorine. Another example would
be water, a compound consisting of two elements: hydrogen
and oxygen.
118 there are about ___________ elements in the known universe.
Mixtures _____________ are the second category of matter and are a
physical blend of two or more pure substances, each of which
retains its own identity and properties in the mixture, like the
salt water example. Only the form of the salt changes when it
is dissolved into water. It retains its composition and
properties.
1. Homogenous mixture What are the 2 types of mixtures?
2. Heterogeneous mixture
homogeneous mixture 2 types of mixtures
A _______________ is a mixture whose composition is uniform
throughout the mixture. The salt water described above is
homogeneous because the dissolved salt is evenly distributed
throughout the entire salt water sample. in the ____________________
of salt water, the amount of salt in the salt water can vary from
one sample to another.
heterogeneous mixture 2 types of mixtures
A __________________ is a mixture in which the composition is
not uniform throughout the mixture. Vegetable soup is a
_____________ _. Any given spoonful of soup will contain
varying amounts of the different vegetables and other
components of the soup.
Introduction to chemistry D425 Actual Exam Questions with Verified Answers 100% Correct
