CHEM 134 LECTURE EXAM 1
WITH CORRECT QUESTIONS
AND ANSWERS
usr
[COMPANY NAME] [Company address]
,1. What is matter? give examples of matter. :Answer anything that takes up space
and has mass. ex :Answer you, trees, water, a house, air
2. What is a substance? ex :Answer A form of matter that has a definite (constant)
composition and distinct properties (water, ammonia, sugar, table salt)
3. 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 :Answer sweat
4. what are the two types of mixtures? :Answer homogeneous and
heterogeneous mixtures
5. What is a homogeneous mixture? ex :Answer a mixture that is the same
throughout (cottee)
6. What is a heterogeneous mixture? ex :Answer a mixture in which the
composition is not uniform throughout (pieces of seaweed in water)
7. what are the three states of matter? :Answer solid, liquid, gas
8. how do you identify a substance? :Answer based on their properties and their
composition
9. what are the four types of properties? :Answer physical, chemical, intensive,
extensive
10.-----------------------------------------------------------------------------What is a
physical property/how is it measured? ex of physical changes :Answer
Mea- sured without changing the composition of the substance (color, melting pt, boiling pt
SUBSTANCE IS THE
SAME BUT IT PHYSICALLY CHANGES)
11. 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)
12. 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.
13. 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
14. are all types of properties measured using the same
instruments? :Answer No
, 15. what is a measured quantity? :Answer written as number with an appropriate
unit and are essential to stating measurement correctly.
16. what is metric unit? :Answer a metric unit is mass length volume. related decimally to
the power of 10
17. what is a revised metric system? :Answer international system of units called
SI units
18. What is length measured in and what is the symbol for this
measurement?-
:Answer meters (m)
19. what is mass measured in? symbol :Answer kilograms (kg)
20. what is time measured in? symbol :Answer seconds (s)
WITH CORRECT QUESTIONS
AND ANSWERS
usr
[COMPANY NAME] [Company address]
,1. What is matter? give examples of matter. :Answer anything that takes up space
and has mass. ex :Answer you, trees, water, a house, air
2. What is a substance? ex :Answer A form of matter that has a definite (constant)
composition and distinct properties (water, ammonia, sugar, table salt)
3. 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 :Answer sweat
4. what are the two types of mixtures? :Answer homogeneous and
heterogeneous mixtures
5. What is a homogeneous mixture? ex :Answer a mixture that is the same
throughout (cottee)
6. What is a heterogeneous mixture? ex :Answer a mixture in which the
composition is not uniform throughout (pieces of seaweed in water)
7. what are the three states of matter? :Answer solid, liquid, gas
8. how do you identify a substance? :Answer based on their properties and their
composition
9. what are the four types of properties? :Answer physical, chemical, intensive,
extensive
10.-----------------------------------------------------------------------------What is a
physical property/how is it measured? ex of physical changes :Answer
Mea- sured without changing the composition of the substance (color, melting pt, boiling pt
SUBSTANCE IS THE
SAME BUT IT PHYSICALLY CHANGES)
11. 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)
12. 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.
13. 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
14. are all types of properties measured using the same
instruments? :Answer No
, 15. what is a measured quantity? :Answer written as number with an appropriate
unit and are essential to stating measurement correctly.
16. what is metric unit? :Answer a metric unit is mass length volume. related decimally to
the power of 10
17. what is a revised metric system? :Answer international system of units called
SI units
18. What is length measured in and what is the symbol for this
measurement?-
:Answer meters (m)
19. what is mass measured in? symbol :Answer kilograms (kg)
20. what is time measured in? symbol :Answer seconds (s)
