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WorksheetsCHEM QUIZ 1
Total questions: 78
Worksheet time: 41mins
what happens to atoms in a chemical reaction?
atoms are rearranged
atoms are created
atoms are destroyed
atoms do nothing
which of the following is NOT a sign of a chemical reaction?
burning
color change
change to gas at room temperature
change to solid when cooled
Which of the following is a mixture?
(circles of different colors represent different types of atoms)
(circles that are touching are chemically bonded)
Atoms are mostly made up of...
empty space
electrons
solids and liquids
What is the symbol for hydrogen?
O
H
He
What is the symbol for helium?
He
H
I
What is the symbol for lithium?
Li
Lr
Ir
What is the symbol for Beryllium?
Be
Fe
Ba
what is the symbol for boron?
B
Be
Bi
What is the symbol for carbon
Fe
C
Be
what is the symbol for nitrogen?
N
Ne
C
which element has this symbol "O"?
Oxygen
nitrogen
carbon
which element has this symbol "F"?
Fluorine
sodium
silicon
which element has this symbol "Ne"?
Beryllium
Neon
nitrogen
which element has this symbol "Na"?
sodium
phosphorus
silicon
which element has the symbol "Mg"?
magnesium
titanium
calcium
which element has the symbol "Al"?
iodine
aluminum
zinc
which element has the symbol "Si"?
Silicon
sulfur
silver
which element has the symbol "P"?
phosphorus
pineapple
platinum
which element has the symbol "S"?
sulfur
silver
silicon
which element has the symbol "Cl"?
Chlorine
calcium
canada
which element has the symbol "Ar"?
argon
aluminum
radium
which element has the symbol "K"?
potassium
phosphorus
platinum
which element has the symbol "Ca"?
calcium
coconut
chlorine
which element has the symbol "Cu"?
copper
chlorine
calcium
which element has the symbol "Ag"?
silver
nitrogen
calcium
which element has the symbol "Au"?
gold
silver
bronze
which element has the symbol "Hg"?
mercury
venus
copper
which element has the symbol "Fe"?
iron
iodine
chlorine
which element has the symbol "Pb"?
lead
iron
phosphorus
which element has the symbol "Sn"?
Tin
lead
iodine
which element has the symbol "Mn"?
manganese
iodine
chlorine
which element has the symbol "Sb"?
Antimony
chlorine
which element has the symbol "Br"?
bromine
beryllium
bismuth
which element has the symbol "I"?
Iodine
iron
chlorine
which element has the symbol "Co"?
cobalt
chlorine
copper
which element has the symbol "Zn"?
zinc
copper
Oxygen
which element has the symbol "Ba"?
Barium
beryllium
bromine
which element has the symbol "Pt"?
Platinum
phosphorus
radium
Physical property
quality or condition a substance that can be observed or measured without changing the substance's composition
amount of matter in a sample
type of matter in a sample
extensive property
amount of matter in a sample
type of matter in a sample
quality or condition of a substance
solids, liquid, gas
mass and volume
intensive properties
extensive properties
intensive property
amount of matter in a sample
type of matter in a sample
quality or condition of a substance
boiling point, freezing point, condensation point, density, ductility, malleable
intensive properties
extensive properties
density
mass/volume
volume/mass
malleable
dent, form into shapes with a hammer
draw into thin wires
heating up
cooling down
ductile/ductility
draw into thin wires
dent, form into shapes with a hammer
heating up
cooling down
Not easy to compress, has a definite shape and volume
solid
liquid
gas
solids
particles very close together, fixed position, orderly arrangement, vibrational motion
particles closely packed, disorderly arrangement, not in fixed position, flow past each other
particles very spaced out, no attraction, randomly arranged, fast moving and free
gas
particles very spaced out, no attraction, randomly arranged, fast moving and free
particles closely packed, disorderly arrangement, not in fixed position, flow past each other
particles very close together, fixed position, orderly arrangement, vibrational motion
liquid
particles very close together, fixed position, orderly arrangement, vibrational motion
particles very spaced out, no attraction, randomly arranged, fast moving and free
particles closely packed, disorderly arrangement, not in fixed position, flow past each other
vapor
a gaseous state of a substance that is generally a liquid or a solid at room temperature
high energy ionized gases
all molecular motion ceases
plasmas
high energy ionized gases
absolute 0
super atom
bose einstein condensate
absolute 0
super atom
some properties of a material change
physical change
some properties of a material change, but composition does not change (reversible)
reversible or irreversible
involve a change from one state to another
cutting hair, filing nails, cracking an egg (irreversible)
indefinite volume, indefinite shape, easy compression
gas
solid
liquid
indefinite shape, fixed volume, not easy to compress
liquid
solid
gas
definite shape, definite volume, not easy to compress
solid
liquid
gas
measure of the amount of matter in the object or sample contains
mass
volume
measure of the space occupied by the object
volume
mass
mixture
can vary in composition from sample to sample
not uniform throughout
uniform distribution throughout
heterogeneous
nonuniform throughout "chunky"
uniform distribution throughout
Homogeneous
(solutions) uniform distribution throughout
nonuniform distribution throughout
portion of the mixture that is uniform
phase
filtration
distillation
homogeneous mixtures of metals
alloys
phase
filtration
distillation
separate mixture into components by physical properties u8sing processes like...
filtration and distillation
phase and alloys
homogeneous and heterogeneous
filtration
separating large particles from liquid
separating components in a solution using a difference in boiling points
portion of the mixture that is uniform
homogeneous mixtures of metals
distillation
separating components in a solution using a difference in boiling points
separating large particles from liquid
uniform distribution throughout
element
simplest form of matter with unique properties. only one type of atom present
pure substance that contains 2 or more elements combined in a fixed ration of atoms
compound
pure substance that contains 2 or more elements combined in a fixed ration of atoms
simplest form of matter with unique properties. only one type of atom present
which is true about compounds?
can be broken down into simpler substances by chemical reactions; elements cannot
only one type of atom present
pure substance: composition cannot vary
chemical change
produces matter with different composition than original matter
pure substance that contains 2 or more elements combined in a fixed ratio of atoms
separating large particles from liquid
lyse/lysis
to break/cut
#of protons in the nucleus
filtration
distillation
what is the difference between elements and compounds?
compounds have different properties than the elements that make them up
elements are smaller
elements are bigger
compounds have nothing to do with elements
which is false about compounds?
they can exist as atoms
2 or more atoms
covalently bonded
true or false:
molecules: 2 or more atoms covalently bonded
true
false
