WorksheetsS1 Final Exam Review
Total questions: 50
Worksheet time: 29mins
An example of an insulator would be
copper
silicon
sulfur
aluminum
When the particles of a liquid become a gas this is called
condensation
vaporization
melting
sublimation
An example of an exothermic reaction is
baking bread
photosynthesis
cooking meat
a glow stick
an atom that has 11 protons, 12 neutrons and 11 electrons has a mass number of
22
23
34
Sodium-22 and Sodium-23 are examples of
isotopes
compounds
mixtures
chemical reactions
Which is a property exclusive to semimetals
they are all solids
they are on the periodic table
they are semiconductors
they are inslulators
What particles are in the nucleus of an atom?
protons and electrons
neutrons and protons
electrons and neutrons
Which scientist did not contribute to atomic theory?
Ernest Rutherford
John Dalton
Dmitri Mendeleev
J.J. Thompson
Elements with the same number of valence electrons are in the same
square
period
group
block
Which group of elements are likely to lose 2 valence electrons
alkali metals
alkaline earth metals
halogens
noble gases
water is an example of
an element
a mixture
a compound
a solution
Density relates mass to
temperature
weight
volume
length
mass is the amount of
atoms in matter
space an object occupies
weight of an object
how much gravity pulls on an object
Why does ice float on top of water?
ice has a lower density than water
ice has a higher density that water
ice is a solid and water is a liquid
ice is lighter and water is heavier
Chemical Equations must be balanced to satisfy
the law of conservation of mass
the law of conservation of science
the law of multiple proportions
the law of definite proportions
How many atoms of calcium will be produced when 3 atoms of calcium react?
0
3
6
9
Which of the following will speed up a chemical reaction?
when the temperature increases
when the surface area decreases
when the concentrations are smaller
when there is an inhibitor present
the difference between a covalent bond and an ionic bond is?
ionic bonds are chemical changes and covalent bonds are physical changes
covalent bonds are chemical changes and ionic bonds are physical changes
covalent bonds are when atoms gain or lose electrons while ionic bonds are when atoms share electrons
ionic bonds are when atoms gain or lose electrons while covalent bonds are when atoms share electrons
Matter is best described as
anything that has mass
anything that has volume
a certain amount of mass in a given space
anything that has mass and volume
volume is best described as
the number of atoms in matter
the amount of space an object occupies
how much gravity pulls on an object
the amount of mass in a given space
the 4th state of matter is
plasma
non-newtonian fluid
sublimation
decomposition
Which type of chemical reaction has two or more reactants to make one product?
single replacement
double replacement
synthesis
decomposition
Identify the following chemical reaction.
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
Synthesis
Decomposition
Single replacement
Double replacement
What reaction has the following general formula:
AB --> A + B
Synthesis
Decomposition
Single Replacement
Double Replacement
What reaction has the following general formula:
A + CD --> C + AD
Synthesis
Decomposition
Single Replacement
Double Replacement
Which subatomic particle has a negative charge?
proton
neutron
electron
Valence electrons are the number of
protons in the atom
electrons in the atom
protons + neutrons in the nucleus
electrons in the outside shell of the atom
What are the vertical columns on the periodic called?
groups
periods
nonmetals
metals
metalloids
What do the vertical columns on the periodic table tell us?
The number of orbitals
The number of valence electrons (electrons on the outer most shell)
What are the horizontal rows on the periodic table called?
periods
groups
metals
nonmetals
metalloids
How do you calculate the number of neutrons? *
Mass = Atomic number - Neutrons
Mass - Atomic number = Neutrons
Atomic number = Neutrons
What group and period does this element belong in? *
period 1 and group 3
period 3 and group 1
period 2 and group 3
period 3 and group 2
How many valence electrons does the element have?
1
2
3
4
Who discovered the nucleus?
Rutherford
Bohr
Thomson
Dalton
Who proposed a model with electrons moving in specific layers?
Rutherford
Bohr
Thomson
Dalton
Who discovered the electrons?
Rutherford
Bohr
Thomson
Dalton
All of the following would classify an element as a metal except?
Dull
Luster
Malleable
Ductile
What is the total number of atoms present in 5Na3PO4?
5
55
40
8
Is the following equation balanced?
Al + O2 ---> 2Al2O3
YES
NO
How many elements are in C6H12O6?
1
2
3
4
Is the following equation balanced?
2C2H2 + 5O2 ---> 4CO2 + 2H2O
YES
NO
Which of the following equations are correctly balanced?
12CO2 + H2O ---> C6H12O6 + O2
CO2 + H2O ---> 3C6H12O6 + O2
CO2 + 9H2O ---> C6H12O6 + O2
6CO2 + 6H2O ---> C6H12O6 + 6O2
Type of reaction?
Balance it too. :)
