CLASS SET
Chemistry Test
For each multiple choice question, you must annotate. Remember annotations are words, pictures, or
equations that represent your thinking.
Questions 1-8. Complete the following table.
Subatomic particle
Neutron
5. Proton
Location in the Atom
2. Nucleus
Electrical Charge
3. neutral/none
Symbol used
4.n0
Positive
8. negative
P+
9. e-
6. Nucleus
7. electron
Outer Shells
→ ____ Mn + __2__ O2
9) Balance the following equation:
____MnO4
10) Balance the following equation:
____NaOH + ____ HCl
11) Balance the following equation:
____SiO2 + __4__ HF
12) Balance the following equation:
____Ag2O + __2__ HCl
→ ____H2O + ____NaCl
→ ____SiF4 + __2__ H2O
→ ____H2O + __2__AgCl
13) How can you calculate the number of neutrons from the periodic table of a given element? Atomic
Mass minus the Atomic number
14) What is the density of a metal bar which is 2.5 cm x 8 cm x 20 cm and has a mass of 11.6g? Record
and bubble in your answer. 11.6/(2.5*8*20)= 0.029g/mL = 0.03 when rounded for grid.
15) What is the volume of the graduated cylinder on the right, Record and bubble in your answer. 64 ml
16) Draw a Bohr Model of Nitrogen.
17) Draw the Lewis dot diagram for a compound made of Aluminum and Fluorine. Then write the
structure of the compound showing the numbers of each element present (For example, water is
written H2O). PRE-AP ONLY name this compound.
18) Label each of the parts of the diagram using the terms below.
Yield
Compound
Reactant
Chemical Equation all
Element
Product
Subscripts
Coefficient
6CO2 + 6H2O  C6H12O6 + 6O2
19) What does the atomic number of an atom tell you?
a) The number of electrons
b) The number of protons and neutrons
c) The number of electrons and neutrons
d) The number of neutrons
20) What is an atom?
a) A really, really small compound.
b) The smallest unit of matter.
c) The smallest unit of matter that retains the properties of an element.
d) The smallest thing with mass
21) Using the diagram on the right, which of the following regions is the metalloids?
a) 1
b) 2
c) 3
d) 4
22) Using the diagram on the right, which of the following
regions is the non-metals?
a) 1
b) 2
c) 3
d) 4
23) Using the diagram on the right, which of the following regions is the region where Alkali metals are
found?
a) 1
b) 2
c) 3
d) 4
24) Using the diagram on the right, which of the following regions is where the Lanthanides are?
a) 1
b) 2
c) 3
d) 4
25) Which element would react in water like Sodium but have a greater mass?
a) Potassium
b) Lithium
c) Carbon
d) Aluminum
26) How many protons are in atom with the atomic number 10 and the mass of 22.45?
a) 10
b) 11
c) 22
d) 22.45
27) Which element would have the same number of valence electrons as Boron?
a) Potassium
b) Calcium
c) Aluminum
d)
28) How many atoms are in C10H16N2O8?
a) 4
b) 24
c) 36
d) 46
29) How many elements are in C10H12N2O8Na4?
a) 3
b) 4
c) 5
d) 6
Silicon
30) The Lewis Dot Diagram for Oxygen has how many dots surrounding its symbol?
a) 3
b) 6
c) 8
d) 16
31) The Lewis Dot Diagram for Mg has how many dots surrounding its symbol?
a) 2
b) 6
c) 12
d) 16
32) How many elements are in the second period of the Periodic Table?
a) 1
b) 2
c) 7
d) 8
33) Which rule is used in writing the chemical symbol of an element?
a)
b)
c)
d)
capitalize all letters
use all lower case letters
capitalize first letter; use lower case on second letter
capitalize second letter
34) Two clear liquids are mixed in an experiment and the mixture gets hot and bubbles. The best
conclusion for this experiment is that ____.
a) both liquids did not mix and did not have a chemical reaction.
b) one chemical had a chemical reaction but the other one may have not reacted.
c) a chemical reaction occurred.
d) A physical change occurred
35) The major difference between an element and a compound is that in an element ___
a) all the atoms are the same type
b) there are atoms of different types
c) atoms are combined into molecules
d) two or more substances are mixed together
36) Which two elements are found in CO2?
a) carbon and hydrogen
b) chlorine and hydrogen
c) carbon and oxygen
d) chlorine and oxygen
37) Sugar is a compound. Its chemical formula is C12H22O11. What elements are present in sugar?
a) carbon, helium, and osmium
b) carbon, hydrogen, and oxygen
c) carbon and water
d) carbon dioxide and hydrogen
38) Which chemical formula represents a compound?
a) A
O2
b) B
Fe
c) C
H2O
d) D
O3
39) A yellow clear solution in a bottle is mixed with a clear solution from a pipette and the mixture turns
bright pink. Which conculsion would be best supported by the evidence?
a)
b)
c)
d)
A physical change occurred because the colors changing is evidence of a physical change.
A chemical change occurred because the colors changing is evidence of a chemical change.
No change occurred because color change in both physical and chemical changes.
With the small amount of information, it is impossible to draw any conclusions
40) Which of these is an everyday example of a chemical change?
a) washing the dishes
b) putting gasoline into a lawnmower
c) burning wood at a campsite
d) wrapping a sandwich in plastic wrap
41) When identifying a chemical reaction, which is the best way to identify that a chemical reaction has
occurred?
a) look for the production of new materials that are different from the starting materials
b) look for a change in size and shape of the materials
c) use a balance to measure the mass of the materials
d) use a filter (strainer) to separate the materials
42) I double checked to make sure that I answered each question and included annotations for each
multiple choice question. My name is: _________________________________________________
5 points BONUS: For each question, mark in the margin a symbol to let me know how confident you
were about each question.
Key:
* Very confident (I knew this answer)
- Not sure how I felt.
? Not very confident (didn’t know how to do it.)