CHEM 120 (Latest Update )
Intro to General, Organic & Biological
Chemistry with Lab | Review Questions &
Answers | Grade A | 100% Correct
Chemistry - answers the study of matter—its composition,properties, and
transformations
Matter - answers anything that has mass and takes up volume (stuff)
The Solid State - answers Has a definite volume
Maintains shape regardless of its container
Particules lie close together in a regular pattern
The Liquid State - answers Has a definite Volume
Takes the shape of its container
Particles are close together but can move past one another
The Gas State - answers Has no definite volume, assumes volume of its container
Has no definite shape,assumes shape of its container
Particles are very far apart and move around randomly
physical properties - answers can be observed or measured without changing the
composition of the material
physical change - answers alters the material without changing its composition
chemical properties - answers determine how a substance can be converted into
another substance.
chemical change - answers the chemical reaction that converts one substance into
another
All matter can be classified as either - answers a pure substance or a mixture
pure substance - answers composed of only a single component (atom or molecule).
It has a constant composition, regardless of sample size or origin of sample
Cannot be broken down by a physical change
Mixture - answers Composed of more than one component
they can have varying composition( any combination of solid liquid and gas)
Can be separated by a physical process
,Element - answers a pure substance that cannot be broken down by a chemical
change.
Compound - answers a pure substance formed by chemically joining two or more
elements
Every measurement is composed of a ______ and a _____. - answers number and unit
The Basic Metric unit and symbol for Length - answers Metric base unit=Meter
Symbol= m
The basic metric unit and symbol for mass - answers Metric base unit=Gram
Symbol=g
The basic metric unit and symbol for volume - answers Metric base unit= Liter
Symbol=L
The basic metric unit and symbol for time - answers Metric base unit = second
Symbol= S
What is the prefix for billion - answers Giga (G)
what is the prefix for million - answers Mega (M)
what is the prefix for thousand - answers Kilo (k)
what is the prefix for tenth - answers Deci (d)
what is the prefix for hundredth - answers Centi (c)
what is the prefix for thousandth - answers Milli (m)
what is the prefix for millionth - answers Micro
what is the prefix for billionth - answers Nano (n)
Mass - answers a measure of the amount of matter in an object.
Weight - answers the force that matter feels due to gravity
exact number - answers results from counting objects or is part of a definition
inexact number - answers results from a measurement or observation and contains
some uncertainty
, significant figures - answers all the digits in a measured number including one estimated
digit
All_________digits are always significant - answers Nonzero
A zero counts as a significant figure when: - answers it occurs between two nonzero
digits
it occurs at the end of a number with a decimal place
A zero does not count as a significant figure when: - answers it occurs at the beginning
of a number
it occurs at the end of a number that does not have a decimal
The answer has the same number of sig figs as the original number with the fewest sig
figs. - answers Rules for Multiplication and division
Conversion Factor - answers A term that converts a quantity in one unit to a quantity in
another unit.
Temperature - answers a measure of how hot or cold an object is
Boiling point of water in Celsius - answers 100 degrees Celsius
Boiling point of water in Fahrenheit - answers 212° Fahrenheit.
Freezing point of water in celsius - answers 0 degrees Celsius
Freezing point of water in Fahrenheit - answers 32 degrees Fahrenheit
Boiling point of water in Kelvin - answers 373 K
Freezing point of water in Kelvin - answers 273 K
Density - answers a physical property that relates the mass of a substance to its volume
mass (g) / volume (mL or cc) - answers Formula for Density
Metals - answers They are located on the left side of the periodic table
They are good conductors of heat and electricity
Shiny solids
Nonmetals - answers Have a dull appearance
Located on the right side of the periodic table
poor conductors of heat and electricity
Intro to General, Organic & Biological
Chemistry with Lab | Review Questions &
Answers | Grade A | 100% Correct
Chemistry - answers the study of matter—its composition,properties, and
transformations
Matter - answers anything that has mass and takes up volume (stuff)
The Solid State - answers Has a definite volume
Maintains shape regardless of its container
Particules lie close together in a regular pattern
The Liquid State - answers Has a definite Volume
Takes the shape of its container
Particles are close together but can move past one another
The Gas State - answers Has no definite volume, assumes volume of its container
Has no definite shape,assumes shape of its container
Particles are very far apart and move around randomly
physical properties - answers can be observed or measured without changing the
composition of the material
physical change - answers alters the material without changing its composition
chemical properties - answers determine how a substance can be converted into
another substance.
chemical change - answers the chemical reaction that converts one substance into
another
All matter can be classified as either - answers a pure substance or a mixture
pure substance - answers composed of only a single component (atom or molecule).
It has a constant composition, regardless of sample size or origin of sample
Cannot be broken down by a physical change
Mixture - answers Composed of more than one component
they can have varying composition( any combination of solid liquid and gas)
Can be separated by a physical process
,Element - answers a pure substance that cannot be broken down by a chemical
change.
Compound - answers a pure substance formed by chemically joining two or more
elements
Every measurement is composed of a ______ and a _____. - answers number and unit
The Basic Metric unit and symbol for Length - answers Metric base unit=Meter
Symbol= m
The basic metric unit and symbol for mass - answers Metric base unit=Gram
Symbol=g
The basic metric unit and symbol for volume - answers Metric base unit= Liter
Symbol=L
The basic metric unit and symbol for time - answers Metric base unit = second
Symbol= S
What is the prefix for billion - answers Giga (G)
what is the prefix for million - answers Mega (M)
what is the prefix for thousand - answers Kilo (k)
what is the prefix for tenth - answers Deci (d)
what is the prefix for hundredth - answers Centi (c)
what is the prefix for thousandth - answers Milli (m)
what is the prefix for millionth - answers Micro
what is the prefix for billionth - answers Nano (n)
Mass - answers a measure of the amount of matter in an object.
Weight - answers the force that matter feels due to gravity
exact number - answers results from counting objects or is part of a definition
inexact number - answers results from a measurement or observation and contains
some uncertainty
, significant figures - answers all the digits in a measured number including one estimated
digit
All_________digits are always significant - answers Nonzero
A zero counts as a significant figure when: - answers it occurs between two nonzero
digits
it occurs at the end of a number with a decimal place
A zero does not count as a significant figure when: - answers it occurs at the beginning
of a number
it occurs at the end of a number that does not have a decimal
The answer has the same number of sig figs as the original number with the fewest sig
figs. - answers Rules for Multiplication and division
Conversion Factor - answers A term that converts a quantity in one unit to a quantity in
another unit.
Temperature - answers a measure of how hot or cold an object is
Boiling point of water in Celsius - answers 100 degrees Celsius
Boiling point of water in Fahrenheit - answers 212° Fahrenheit.
Freezing point of water in celsius - answers 0 degrees Celsius
Freezing point of water in Fahrenheit - answers 32 degrees Fahrenheit
Boiling point of water in Kelvin - answers 373 K
Freezing point of water in Kelvin - answers 273 K
Density - answers a physical property that relates the mass of a substance to its volume
mass (g) / volume (mL or cc) - answers Formula for Density
Metals - answers They are located on the left side of the periodic table
They are good conductors of heat and electricity
Shiny solids
Nonmetals - answers Have a dull appearance
Located on the right side of the periodic table
poor conductors of heat and electricity
