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WorksheetsHaigh Chemistry Post Test
Total questions: 18
Worksheet time: 22mins
Which of the following are true about matter?
is EVERYTHING in the universe
is ALMOST everything in the universe
always has carbon in it
is energy
has mass (stuff inside of it)
Where is the atomic number located on the periodic table?
under the element symbol
above the element symbol
its not on the periodic table
to the right of the element symbol
What is the atomic number of Copper?
30
31
29
42
What is the name of the atom pictured?
Helium
Lithium
Beryllium
Hydrogen
What is the symbol for the element Iron?
Ir
I
Fe
there isn't one
Atoms come together to form....
clusters
molecules
nothing
groups of atoms
Water is made of the following elements...
other molecules
salt
hydrogen and oxygen
4 atoms
The molecule CO2 is made up what elements and how many atoms of each?
1 atom of Cobalt
1 carbon and 2 oxygen atoms
many molecules
calcium and 2 atoms of Cobalt
O2 is molecule.
True
False
Xe is a molecule.
True
False
Select all that apply. Evidence of a CHEMICAL change includes:
a color change
smoke is produced
temperature change
light is produced
change in shape
Select all that apply: Evidence of a PHYSICAL change includes:
color change
change of phase
temperature change
change in shape or size
smoke is produced
If enough energy is REMOVED from matter in a LIQUID phase, it will become a ____________.
liquid
solid
gas
plasma
If enough energy is ADDED to matter in a LIQUID phase, it will become a _______________.
solid
liquid
gas
plasma
Select all that are true about gases:
the particles in gases move faster than particles in a solid
the particles in gases have more energy than the particles in a liquid
the particles in gases will expand to fill their container
the particles in gases can be compressed
the particles in gases move slower than particles in a liquid
Is the following equation balanced?
C6+H12+O8 ----> C6+H12+O
Yes
No
In an EXOTHERMIC REACTION...(check all that apply)
energy is absorbed
a temperature decrease in the surroundings
energy is released
a temperature increase in the surroundings
In an ENDOTHERMIC REACTION...(check all that apply)
energy is absorbed
a temperature decrease in the surroundings
energy is released
a temperature increase in the surroundings
