CHEM134 C002 SPRING DIGITAL
COLLIGATIVE PROPERTIES BEYOND LABZ
ACTUAL PAPER SOLVED QUESTIONS
◉ What is a substance? ex
Answer: A form of matter that has a definite (constant)
composition and distinct properties (water, ammonia, sugar, table
salt)
◉ What is a mixture? ex
Answer: is a combination of two or more substances in which the
substances retain their distinct identities (constant composition
throughout) ex: sweat
◉ what are the two types of mixtures?
Answer: homogeneous and heterogeneous mixtures
◉ What is a homogeneous mixture? ex
Answer: a mixture that is the same throughout (coffee)
◉ What is a heterogeneous mixture? ex
Answer: a mixture in which the composition is not uniform
throughout (pieces of seaweed in water)
,◉ what are the three states of matter?
Answer: solid, liquid, gas
◉ how do you identify a substance?
Answer: based on their properties and their composition
◉ what are the four types of properties?
Answer: physical, chemical, intensive, extensive
◉ What is a physical property/how is it measured? ex of physical
changes
Answer: Measured without changing the composition of the
substance (color, melting pt, boiling pt. --------- SUBSTANCE IS
THE SAME BUT IT PHYSICALLY CHANGES)
◉ what is a chemical property/how is it measured? ex of chemical
changes
Answer: a chemical property is measures via carrying out a
chemical change. (ex burning H2 to in O2 to make H2O)
◉ What is an extensive property? How is it measured ( using
mass, volume, or density)?
Answer: a property that depends on the amount of matter in a
sample(measured using mass an volume.
,◉ What is an intensive property? How is it measured ( using
mass, volume, or density)?
Answer: a property that depends on the type of matter in a
sample, not the amount of matter. Measured using density
◉ are all types of properties measured using the same
instruments?
Answer: No
◉ what is a measured quantity?
Answer: written as number with an appropriate unit and are
essential to stating measurement correctly.
◉ what is metric unit?
Answer: a metric unit is mass length volume. related decimally to
the power of 10
◉ what is a revised metric system?
Answer: international system of units called SI units
◉ What is length measured in and what is the symbol for this
measurement?
Answer: meters (m)
◉ what is mass measured in? symbol
, Answer: kilograms (kg)
◉ what is time measured in? symbol
Answer: seconds (s)
◉ what is electrical current measured in? symbol
Answer: ampere (A)
◉ what is temperature measured in?
Answer: (K) Kelvin
◉ what is the amount of a substance measured in? symbol
Answer: Mole (mol)
◉ what luminous intensity measured in?
Answer: candela (cd)
◉ what is the symbol for tera and what does it mean in SI units?
Answer: T. SI units: 10^12
◉ what is the symbol for giga and what does it mean in SI units?
Answer: G. 10^9
COLLIGATIVE PROPERTIES BEYOND LABZ
ACTUAL PAPER SOLVED QUESTIONS
◉ What is a substance? ex
Answer: A form of matter that has a definite (constant)
composition and distinct properties (water, ammonia, sugar, table
salt)
◉ What is a mixture? ex
Answer: is a combination of two or more substances in which the
substances retain their distinct identities (constant composition
throughout) ex: sweat
◉ what are the two types of mixtures?
Answer: homogeneous and heterogeneous mixtures
◉ What is a homogeneous mixture? ex
Answer: a mixture that is the same throughout (coffee)
◉ What is a heterogeneous mixture? ex
Answer: a mixture in which the composition is not uniform
throughout (pieces of seaweed in water)
,◉ what are the three states of matter?
Answer: solid, liquid, gas
◉ how do you identify a substance?
Answer: based on their properties and their composition
◉ what are the four types of properties?
Answer: physical, chemical, intensive, extensive
◉ What is a physical property/how is it measured? ex of physical
changes
Answer: Measured without changing the composition of the
substance (color, melting pt, boiling pt. --------- SUBSTANCE IS
THE SAME BUT IT PHYSICALLY CHANGES)
◉ what is a chemical property/how is it measured? ex of chemical
changes
Answer: a chemical property is measures via carrying out a
chemical change. (ex burning H2 to in O2 to make H2O)
◉ What is an extensive property? How is it measured ( using
mass, volume, or density)?
Answer: a property that depends on the amount of matter in a
sample(measured using mass an volume.
,◉ What is an intensive property? How is it measured ( using
mass, volume, or density)?
Answer: a property that depends on the type of matter in a
sample, not the amount of matter. Measured using density
◉ are all types of properties measured using the same
instruments?
Answer: No
◉ what is a measured quantity?
Answer: written as number with an appropriate unit and are
essential to stating measurement correctly.
◉ what is metric unit?
Answer: a metric unit is mass length volume. related decimally to
the power of 10
◉ what is a revised metric system?
Answer: international system of units called SI units
◉ What is length measured in and what is the symbol for this
measurement?
Answer: meters (m)
◉ what is mass measured in? symbol
, Answer: kilograms (kg)
◉ what is time measured in? symbol
Answer: seconds (s)
◉ what is electrical current measured in? symbol
Answer: ampere (A)
◉ what is temperature measured in?
Answer: (K) Kelvin
◉ what is the amount of a substance measured in? symbol
Answer: Mole (mol)
◉ what luminous intensity measured in?
Answer: candela (cd)
◉ what is the symbol for tera and what does it mean in SI units?
Answer: T. SI units: 10^12
◉ what is the symbol for giga and what does it mean in SI units?
Answer: G. 10^9
