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Elements,
Atoms,
Molecules
Water
Chemical
reactions
Mixed
Q’s #1
Mixed
Q’s #2
10 Point
10 Point
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10 Point
10 Point
20 Points
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30 Points
30 Points
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40 Points
40 Points
40 Points
40 Points
40 Points
50 Points
50 Points
50 Points
50 Points
50 Points
Substances that
can’t be broken
down by ordinary
chemical means
What is an
element?
Magnesium,
chlorine, and
phosphorus are
needed in minute
quantities in your
body
What is a trace element?
Carbon, Oxygen,
Nitrogen and
Hydrogen
What elements make up 96%
of the human body (and
living organisms)
atoms that decay
spontaneously
and can be
used for medical diagnosis
What are
radioactive
isotopes?
bonds that have
unequal electron sharing
and create important
biological compounds
What are polar
covalent bonds?
The universal
solvent
What is water?
The attraction of water
molecules to the tissue walls of a
plant during capillary action
What is adhesion?
The tendency of
water molecules to
stick together
What is cohesion?
A hydrogen atom in one
molecule can
bond to an
electronegative atom in
another molecule
What is a hydrogen
bond?
These two oxide
molecules that
cause acid
precipitation
What are sulfur
oxides and nitrogen
oxides?
Atoms that gain
or lose electrons
What are ions?
What are nonpolar
covalent bonds?
A molecule that
shares electrons
equally
A chemical reaction
shows the ______ to
the left of the arrow
and the _____ to the
right of the arrow.
What are
Reactants /
products?
Weak acids or bases
that help resist
drastic changes in
pH
What are buffers?
Chemical
compounds that
add H+ to a
solution
What are acids?
The number of
protons in the
nucleus
What is the atomic
number?
The outermost
electrons involved
in reactivity
What are valence
electrons?
A substance
containing 2
or more elements in a
fixed ratio
What is a
compound?
The atom that has an
atomic number 12, mass
number 24, and has 10
electrons, 12 protons, and
12 neutrons
What is the
+
magnesium 2 ?
The property of water
that characterizes
its ability to absorb a high amount
of heat without changing its
temperature drastically
What high specific
Heat?
The number of
protons and
neutrons in the
nucleus
What is the atomic
mass number?
The protons,
neutrons and
electrons of an atom
What are
subatomic
particles?
Changing this
would change the
atom into a
different element
What are protons?
A can of cola
consists of sugar
dissolved in water.
The sugar is the
_______, the water
is the ________
What is a solute
and a solvent?
Lack of this trace
element causes
goiters
What is iodine?
Make your wager
A radioactive isotope used
in the
treatment of thyroid
cancer
What is
Iodine – 131?