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Chemistry Review Flashcards | StudBud
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Chemistry Review
Chemistry Review
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Questions
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Answers
1
Molecules must contain...
a mixture
2 different atoms bonded together
atoms from different elements
at least 2 atoms that can be from the same element
2
Periods are ____ on the periodic table.
sections
columns
groups
rows
3
What does the image best represent?
compund
element
molecule only
mixture
4
Boiling water is what type of change?
solution
molecular change
chemical change
physical change
5
Compounds must contain...
a mixture
2 of the same atoms bonded together
only one atom
at least 2 different atoms bonded together
6
Which of the following are signs of a chemical change?
change in temperature
all of the above
formation of a gas
color change
7
A liquid...
has a definite shape, but not size
has niether a definite shape and size
has a definite size, but not shape
has a definite shape and size
8
When measuring how well a substance dissolves in another, you are measuring ...
solute
solvent
solubility
insoluble
9
What does this image best represent?
element
compound
mixture
molecule
10
The formula to calculate density is...
mass-volume
volume+mass
mass/volume
mass * volume
11
When acids & bases combine, they...
change
become an acid
neutralize
become a base
12
which of the following is NOT matter?
air
fire
sound
solid
13
Chemistry is the study of
matter
motion and forces
the universe
life
14
The number of electrons in an element is...
abrevation
the same as the atomic number
the atomic mass
row
15
Which is NOT a way the Periodic Table is organized?
electrons
family
groups
Atomic Number
16
What type of mixture is a solution?
heterogeneous
homogeneous
a mixture
compound
17
Matter is...
an element
the volume of an object
how much something weighs
anything that has mass & takes up space
18
Objects that are _______ dense than/as water will float.
more
less
equally
19
Groups are _____ on the periodic table.
periods
rows
columns
sections
20
The density of water is...
15 grams
100 g/ml
1 million g/ml
1 g/ml
21
Most elements on the periodic table are...
Alkali Earth Metals
metals
nonmetals
metaloids
22
Acids have a pH of..
16
less than 7
more than 7
7
23
if you heat water & measure it boils, you are measuring what type of property?
chemical
atomic
distributive
physical
24
What does the image best represent?
element
molucule
compund
mixture
25
Fruit salad is considered to be a _________ mixture.
heterogenous
homogeneous
compound
chemical
26
The atoms in a solid...
are spread apart
are packed closely together
in an array
move quickly
27
When a solid becomes a gas this is called...
boiling
melting
sublimation
deposition
28
What does this image best represent?
molecule only
atom
mixture
compound
29
Which is NOT a physical property?
color
size
shape
pH
30
A gas...
will take the shape & size in whatever container it's in
will change state
will stay the same
31
Bases have pH of...
7
more than 7
less than 7
19
32
The number of protons in an element is...
atomic mass-atomic number
the same as the atomic number
the atomic mass
same as the neutrons
33
Atoms are...
more than one element combined
easy to see
the smallest unit of matter
the largest unit of matter
