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CHEM 120 FINAL EXAM LATEST 2024 WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS/ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS
Chemistry - .....ANSWER ...✔✔ The study of the
properties of matter and how matter changes
Basic Unit in Chemistry - .....ANSWER ...✔✔ atom
Types of Chemistry - .....ANSWER ...✔✔ Green
Chemistry
Sustainable Chemistry
green chemistry - .....ANSWER ...✔✔ uses materials
and processes that are intended to prevent or reduce
pollution at its source
replacing rare hazardous with more abundant less
hazardous
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Example of green chemistry - .....ANSWER ...✔✔
replacement of mercury fluorescent light bulbs with
efficient mercury free light bulbs
Green Chemistry Solar Fuels - .....ANSWER ...✔✔
sunlight is abundant source of energy
plants store solar energy as chemical energy via
photosynthesis
artificial photosynthesis - .....ANSWER ...✔✔ can be
used to generate hydrogen fuel
H fuel can then be reacted with O to produce heat and
electricity
water---->hydrogen + oxygen
sustainable chemistry - .....ANSWER ...✔✔ designed
to meet the needs of the present generation without
compromising the needs of future generations
Matter - .....ANSWER ...✔✔ Anything that has mass
and takes up space
mass - .....ANSWER ...✔✔ A measure of the amount
of matter in an object
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weight - .....ANSWER ...✔✔ A measure of the
gravitational force exerted on the matter of an object.
Classes of Matter - .....ANSWER ...✔✔ Solids, Liquids,
Gas
Solid - .....ANSWER ...✔✔ Definite shape and volume
vibration
ice, brick, wood,
liquid - .....ANSWER ...✔✔ A state of matter that has
no definite shape but has a definite volume.
move in irregular pattern
petrol, vinegar, paint, water
gas - .....ANSWER ...✔✔ A state of matter with no
definite shape or volume
freely move continuously- far apart
helium, oxygen, carbon monoxide, hydrogen
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melting point - .....ANSWER ...✔✔ The temperature at
which a solid becomes a liquid
Vaporation - .....ANSWER ...✔✔ Liquid to gas
boiling Point - .....ANSWER ...✔✔ temp at which liquid
escapes and becomes a gas
condensation - .....ANSWER ...✔✔ Gas to liquid
freezing - .....ANSWER ...✔✔ liquid to solid
occurs at freezing point/same as melting point
Sublimation - .....ANSWER ...✔✔ A change directly
from the solid to the gaseous state without becoming
liquid
Ex: dry ice
2 categories of matter - .....ANSWER ...✔✔
substances and mixtures
CHEM 120 FINAL EXAM LATEST 2024 WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS/ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS
Chemistry - .....ANSWER ...✔✔ The study of the
properties of matter and how matter changes
Basic Unit in Chemistry - .....ANSWER ...✔✔ atom
Types of Chemistry - .....ANSWER ...✔✔ Green
Chemistry
Sustainable Chemistry
green chemistry - .....ANSWER ...✔✔ uses materials
and processes that are intended to prevent or reduce
pollution at its source
replacing rare hazardous with more abundant less
hazardous
,2|Page
Example of green chemistry - .....ANSWER ...✔✔
replacement of mercury fluorescent light bulbs with
efficient mercury free light bulbs
Green Chemistry Solar Fuels - .....ANSWER ...✔✔
sunlight is abundant source of energy
plants store solar energy as chemical energy via
photosynthesis
artificial photosynthesis - .....ANSWER ...✔✔ can be
used to generate hydrogen fuel
H fuel can then be reacted with O to produce heat and
electricity
water---->hydrogen + oxygen
sustainable chemistry - .....ANSWER ...✔✔ designed
to meet the needs of the present generation without
compromising the needs of future generations
Matter - .....ANSWER ...✔✔ Anything that has mass
and takes up space
mass - .....ANSWER ...✔✔ A measure of the amount
of matter in an object
,3|Page
weight - .....ANSWER ...✔✔ A measure of the
gravitational force exerted on the matter of an object.
Classes of Matter - .....ANSWER ...✔✔ Solids, Liquids,
Gas
Solid - .....ANSWER ...✔✔ Definite shape and volume
vibration
ice, brick, wood,
liquid - .....ANSWER ...✔✔ A state of matter that has
no definite shape but has a definite volume.
move in irregular pattern
petrol, vinegar, paint, water
gas - .....ANSWER ...✔✔ A state of matter with no
definite shape or volume
freely move continuously- far apart
helium, oxygen, carbon monoxide, hydrogen
, 4|Page
melting point - .....ANSWER ...✔✔ The temperature at
which a solid becomes a liquid
Vaporation - .....ANSWER ...✔✔ Liquid to gas
boiling Point - .....ANSWER ...✔✔ temp at which liquid
escapes and becomes a gas
condensation - .....ANSWER ...✔✔ Gas to liquid
freezing - .....ANSWER ...✔✔ liquid to solid
occurs at freezing point/same as melting point
Sublimation - .....ANSWER ...✔✔ A change directly
from the solid to the gaseous state without becoming
liquid
Ex: dry ice
2 categories of matter - .....ANSWER ...✔✔
substances and mixtures
