CHEM-120 CHAMBERLAIN FINAL
EXAM
Chemistry - answers-The study of the properties of matter and how matter changes
Basic Unit in Chemistry - answers-atom
Types of Chemistry - answers-Green Chemistry
Sustainable Chemistry
green chemistry - answers-uses materials and processes that are intended to prevent or
reduce pollution at its source
replacing rare hazardous with more abundant less hazardous
Example of green chemistry - answers-replacement of mercury fluorescent light bulbs
with efficient mercury free light bulbs
Green Chemistry Solar Fuels - answers-sunlight is abundant source of energy
plants store solar energy as chemical energy via photosynthesis
artificial photosynthesis - answers-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 - answers-designed to meet the needs of the present generation
without compromising the needs of future generations
Matter - answers-Anything that has mass and takes up space
mass - answers-A measure of the amount of matter in an object
weight - answers-A measure of the gravitational force exerted on the matter of an
object.
Classes of Matter - answers-Solids, Liquids, Gas
Solid - answers-Definite shape and volume
,vibration
ice, brick, wood,
liquid - answers-A state of matter that has no definite shape but has a definite volume.
move in irregular pattern
petrol, vinegar, paint, water
gas - answers-A state of matter with no definite shape or volume
freely move continuously- far apart
helium, oxygen, carbon monoxide, hydrogen
melting point - answers-The temperature at which a solid becomes a liquid
Evaporation - answers-Liquid to gas
boiling Point - answers-temp at which liquid escapes and becomes a gas
condensation - answers-Gas to liquid
freezing - answers-liquid to solid
occurs at freezing point/same as melting point
Sublimation - answers-A change directly from the solid to the gaseous state without
becoming liquid
Ex: dry ice
2 categories of matter - answers-substances and mixtures
Substance - answers-A single kind of matter that is pure and has a specific set of
properties.
Substance contains - answers-Elements and Compounds
Elements - answers-A molecule composed of one kind of atom; cannot be broken into
simpler units by chemical reactions.
represented by chemical groups:
Cl, H, Mg
Compounds - answers-2 or more elements chemically combined
many exist as groups of atoms bonded together as molecules
Atoms - answers-Building blocks of matter
smallest particle in an element
Aristotle - answers-A Greek Philosopher,
all matter is composed of 4 elements
,all matter is continuous not atomistic
WEAF- water, earth, air, water
Atomos - answers-Lecuippus/Democritus
point at which matter can no longer be subdivided
Mixtures - answers-A combination of two or more substances that are not chemically
combined
homogeneous mixture - answers-a mixture that is uniform in composition; components
are evenly distributed and not easily distinguished
Ex: sugar and water
heterogeneous mixture - answers-A mixture that is not uniform in composition;
components are not evenly distributed throughout the mixture
Ex: oil and water
Measurement of Matter - answers-mass
Measurements of length - answers-meters
1 m= 100 cm
1000 m=1 km
0.0254 m = 1 inch
Measurement of mass - answers-kilograms
0.454 kg=1 lbs.
1 kg= 2.2 lbs.
.001 kg= 1 g
1g= 1000 mg
Measurement of volume - answers-liter (L)
1 gal = 3.79 L
.26 gal= 1 L
1000 ml = 1 L
measurement of time - answers-seconds
measurement of temperature - answers-Kelvin (K)
Amount of substance - answers-mole (mol)
A mole of a substance - answers-is the amount of a substance which contains 6 X
10^23 particles of that substance
Measurement of electric current - answers-ampere
when moving to a bigger unit- divide
, when moving to smaller unit- multiply
Convert 0.0123456 km to m - answers-move decimal 3 places to right
12.3456 m
Convert 25 kg to go to mg - answers-25 kg = 25,0000 g= 25,000000 mg
Density - answers-mass/volume
Calculate Density of Metal Sample with a mass of 18.96 g and a volume of 4.32 cm3 -
answers-D= M/V
D= 18.96g/4.31 cm3
D= 4.40 g/cm3
Energy - answers-the ability to do work
the ability to change matter, physically or chemically
Types of energy - answers-potential and kinetic
potential energy - answers-energy that is stored in an object due to its position or
condition of an object.
kinetic energy - answers-Energy in motion (gases)
Heat - answers-The energy transferred from a hotter object to a cooler one
Measurement of heat - answers-calories or joules
1 call is the amount of heat required to change the temp of 1.00 g of water at 1.00
degrees C
1 call= 4.184 J
Temperature - answers-is the average amount of kinetic energy of the atoms molecules
that make up an object
body temperature - answers-the balance between the heat produced by the body and
the heat lost from the body
Normal body temperature - answers-98.6 F
(37 C)
310 K
Temperature Conversions - answers-F=32 + 1.8 x C
K= C + 273.15
Boiling and freezing point of water - answers-Boiling: 212 F, 100 C, 373 K
EXAM
Chemistry - answers-The study of the properties of matter and how matter changes
Basic Unit in Chemistry - answers-atom
Types of Chemistry - answers-Green Chemistry
Sustainable Chemistry
green chemistry - answers-uses materials and processes that are intended to prevent or
reduce pollution at its source
replacing rare hazardous with more abundant less hazardous
Example of green chemistry - answers-replacement of mercury fluorescent light bulbs
with efficient mercury free light bulbs
Green Chemistry Solar Fuels - answers-sunlight is abundant source of energy
plants store solar energy as chemical energy via photosynthesis
artificial photosynthesis - answers-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 - answers-designed to meet the needs of the present generation
without compromising the needs of future generations
Matter - answers-Anything that has mass and takes up space
mass - answers-A measure of the amount of matter in an object
weight - answers-A measure of the gravitational force exerted on the matter of an
object.
Classes of Matter - answers-Solids, Liquids, Gas
Solid - answers-Definite shape and volume
,vibration
ice, brick, wood,
liquid - answers-A state of matter that has no definite shape but has a definite volume.
move in irregular pattern
petrol, vinegar, paint, water
gas - answers-A state of matter with no definite shape or volume
freely move continuously- far apart
helium, oxygen, carbon monoxide, hydrogen
melting point - answers-The temperature at which a solid becomes a liquid
Evaporation - answers-Liquid to gas
boiling Point - answers-temp at which liquid escapes and becomes a gas
condensation - answers-Gas to liquid
freezing - answers-liquid to solid
occurs at freezing point/same as melting point
Sublimation - answers-A change directly from the solid to the gaseous state without
becoming liquid
Ex: dry ice
2 categories of matter - answers-substances and mixtures
Substance - answers-A single kind of matter that is pure and has a specific set of
properties.
Substance contains - answers-Elements and Compounds
Elements - answers-A molecule composed of one kind of atom; cannot be broken into
simpler units by chemical reactions.
represented by chemical groups:
Cl, H, Mg
Compounds - answers-2 or more elements chemically combined
many exist as groups of atoms bonded together as molecules
Atoms - answers-Building blocks of matter
smallest particle in an element
Aristotle - answers-A Greek Philosopher,
all matter is composed of 4 elements
,all matter is continuous not atomistic
WEAF- water, earth, air, water
Atomos - answers-Lecuippus/Democritus
point at which matter can no longer be subdivided
Mixtures - answers-A combination of two or more substances that are not chemically
combined
homogeneous mixture - answers-a mixture that is uniform in composition; components
are evenly distributed and not easily distinguished
Ex: sugar and water
heterogeneous mixture - answers-A mixture that is not uniform in composition;
components are not evenly distributed throughout the mixture
Ex: oil and water
Measurement of Matter - answers-mass
Measurements of length - answers-meters
1 m= 100 cm
1000 m=1 km
0.0254 m = 1 inch
Measurement of mass - answers-kilograms
0.454 kg=1 lbs.
1 kg= 2.2 lbs.
.001 kg= 1 g
1g= 1000 mg
Measurement of volume - answers-liter (L)
1 gal = 3.79 L
.26 gal= 1 L
1000 ml = 1 L
measurement of time - answers-seconds
measurement of temperature - answers-Kelvin (K)
Amount of substance - answers-mole (mol)
A mole of a substance - answers-is the amount of a substance which contains 6 X
10^23 particles of that substance
Measurement of electric current - answers-ampere
when moving to a bigger unit- divide
, when moving to smaller unit- multiply
Convert 0.0123456 km to m - answers-move decimal 3 places to right
12.3456 m
Convert 25 kg to go to mg - answers-25 kg = 25,0000 g= 25,000000 mg
Density - answers-mass/volume
Calculate Density of Metal Sample with a mass of 18.96 g and a volume of 4.32 cm3 -
answers-D= M/V
D= 18.96g/4.31 cm3
D= 4.40 g/cm3
Energy - answers-the ability to do work
the ability to change matter, physically or chemically
Types of energy - answers-potential and kinetic
potential energy - answers-energy that is stored in an object due to its position or
condition of an object.
kinetic energy - answers-Energy in motion (gases)
Heat - answers-The energy transferred from a hotter object to a cooler one
Measurement of heat - answers-calories or joules
1 call is the amount of heat required to change the temp of 1.00 g of water at 1.00
degrees C
1 call= 4.184 J
Temperature - answers-is the average amount of kinetic energy of the atoms molecules
that make up an object
body temperature - answers-the balance between the heat produced by the body and
the heat lost from the body
Normal body temperature - answers-98.6 F
(37 C)
310 K
Temperature Conversions - answers-F=32 + 1.8 x C
K= C + 273.15
Boiling and freezing point of water - answers-Boiling: 212 F, 100 C, 373 K
