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WorksheetsFirst Semester Exam Review
Total questions: 30
Worksheet time: 15mins
When reading a line graph the bottom line is the independent variable.
True.
False.
Is 47Kg greater than, less than or equal to 470Dg?
greater than
less than
equal to
Chemical changes produce
bubbles
colors
new substances
nothing
Physical changes produce
a change in state
a new substance
a precipitate
Electrons are
heavy, fast and outside the nucleus
light, slow and inside the nucleus
heavy, slow and inside the nucleus
light, fast, and outside the nucleus
Atoms are held together by the attraction of Protons and Electrons, which also makes them neutral.
False
True
Which family on the periodic table explodes on contact with water?
Halogens
Alkali Metals
Noble Gases
If Magnesium is in the same family with Calcium, will they have similar properties?
no
yes
What is Silicon?
metal
nonmetal
metalloid
nothing
Periods on a periodic table go
across
up and down
Where do you find the proton number on the periodic table?
atomic mass
atomic mass- atomic number
atomic number
neutron number
How do you find the neutron number?
atomic mass
atomic mass-atomic number
atomic number
you can't find it
Neutrons are
+
0
-
Where are metals on the periodic table?
left
right
zig zag middle
Bohr diagram: has only the valence electrons shown.
true
false
If atoms lose electrons they become
neutral
negative
positive
What number of electrons do atoms want to be stable?
1
4
2
8
Ionic bonds are
metal, nonmetal
nonmetal, nonmetal
Covalent bonds are
nonmetal, nonmetal
metal, nonmetal
Fluorine atoms lose or gain an electron to become stable?
lose 1 valence
lose 2 valence
gain 1 valence
gain 2 valence
Is it balanced: H2O2 --> H2O + O2
yes
no
Is it balanced: 2Cu2O + C ---> 4Cu + CO2
yes
no
Is matter created or destroyed?
no
yes
Reactants weigh 62g, Products will weigh?
0g
60g
62g
63g
If H and O are your reactants what are the products?
H and O
Mg and Fe
H and C
O and Mg
Acids are
0-7
7-14
Bases _________ react with carbonates
do
don't
OH- are
acids
bases
neutrals
Strong acids fall closer to
0
7
14
What are polymers?
single chain of polymers
single chain of monomers
repeating chain of polymers
repeating chain of monomers
