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Name: ______________________________
Date: _________________ Period: ___________
Chemistry Test - Study Guide
Due: ____________
Test on: ___________
Objective
# of
Questions
Ⓡ 8.5 (A) Atoms: Students will be able to describe the structure of atoms, including the masses,
electrical charges, and locations of protons, neutrons, and electrons.
7
Ch. 2.2 and
notes
Ⓡ 8.5 (B) Element Identity: Students will be able to identify that protons determine an element’s
identity and valence electrons determine its chemical properties.
4
Ch. 2.4 and
notes
Ⓡ 8.5 (C) Periodic Table: Students will be able to interpret the arrangement of the Periodic Table,
including groups and periods.
Ⓡ 8.5 (D) Chemical Formulas: Students will be able to recognize that chemical formulas are used to
identify substances and determine the number of atoms of each element.
Ⓡ 8.5 (E) Chemical Reactions: Students will be able to investigate how evidences of chemical reactions
indicate that new substances are formed.
Ⓡ 8.5 (F) Balancing Equations: Students will be able to recognize whether or not a chemical equation is
balanced and how that applies to the Law of Conservation of Mass.
Ⓢ 6.5(C) Elements & Compounds: Differentiate between elements and compounds on the most
basic level.
Ⓢ 6.6 (B) Density: Students will be able to calculate density and use density to determine if an object
will sink or float.
Ⓢ 6.6 (A) Physical Properties: Compare metals, nonmetals, and metalloids using physical properties
such as luster, conductivity or malleability.
Ⓢ 7.6B Physical & Chemical Changes: Distinguish between physical and chemical changes in matter
in the digestive system.
Ⓢ 8.2 (C) Measuring: Students will be able to measure solids, liquids, and gases.
4
5
Ch. 2.3 and
notes
Ch. 3.3 and
notes
Ch. 3.3 and
notes
Ch. 3.3 and
notes
Notes
2
Notes
3
4
Ch. 2
section 3
Lab
4
Labs
3
6
10
1. As you move from left to right on the periodic table what happens to the number of valence electrons?
_______________________________________________________________________________________
2. What are the elements in the chemical formula of caffeine C8H10N4O2?
_______________________________________________________________________________________
3. How many atoms are in sulfuric acid H2SO4? How many atoms of Sulfur are in the formula?
_______________________________________________________________________________________
4. What is the difference between an element, compound, and mixture?
_______________________________________________________________________________________
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5. Matter is anything that has _____________________ and _________________________________.
A physical property is observed with the senses and can be determined without changing the substance. For
example, color, shape, mass, length, density, specific heat, and odor are all examples of physical change. A
chemical property indicates how a substance reacts with another substance. The original substance is
fundamentally changed in observing a chemical property. For example, the ability of iron to rust is a chemical
property. The iron has reacted with oxygen and the original iron metal is gone. It is now iron oxide, a new
substance.
Classify the following properties as either a physical (P) or chemical (C) property.
6. Blue color
7. Density
8. Flammability
9. Solubility
10. Melting point
11. Reacts with water to form a gas
12. Hardness
13. Boiling point
14. Luster
15. Odor
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
In a physical change, the original substance still exists; it has only changed in form. In a chemical change, a
new substance is produced.
Classify each of the following as a physical (P) or chemical (C) change.
16. A piece of wood burns to form ash.
17. Water is absorbed by a paper towel.
18. A piece of apple rots on the ground.
19. Milk goes sour.
20. Mixing blue and red water to make purple water.
21. Yeast making bread rise.
22. A plant turns sunlight, CO2, and H2O into glucose and
O2 through photosynthesis.
23. A tire is inflated with air.
24. Candle wax melts.
25. Turning on a light bulb.
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
26. What kind of physical and chemical changes happen in your body when breaking down your food?
Complete the table.
Process
Description
Chewing
Using teeth to break food into smaller
pieces
Softening for swallowing and predigestion through enzymes in saliva
Acid in the stomach break down foods,
producing heat and nutrients for the
body
Additional chemicals continue to break
down foods into useable nutrients
Saliva
Stomach
Intestines
Physical or Chemical
Change
Evidence
27. Compare endothermic and exothermic reactions.
_______________________________________________________________________________________
_______________________________________________________________________________________
28. How many protons, neutrons, and electrons are in an atom of Calcium? What is the atomic number and
atomic mass of Calcium?
P= __________ N=___________ E=__________ Atomic #=__________ Atomic Mass=___________
29. What has to take place in order for a chemical equation to be balanced?
______________________________________________________________________________________
30. Balance this equation:
Zn +
HCl
--->
What are the reactants? ________________________
ZnCl2 +
H2
the products? ______________________
31. How many electrons are in a neutral atom of an element with an atomic mass of 48 and an atomic number
of 22? __________________
32. What are the period, group, and symbol for Tin? period___________group_________symbol__________
33. What number that is represented on each element of the periodic table shows how many electrons and
protons it holds? ____________________________________________________________________
34. How do you find out how many neutrons are in an atom? _____________________________________
35. Where are the metals, nonmetals, and metalloids located on the periodic table of elements? Give 3
properties of metals and nonmetals.
Metals- _______________________________________________________________________________
Nonmetals - ___________________________________________________________________________
Metalloids - ___________________________________________________________________________
36. Elements in the same family (group) have ________________ properties.
37. Elements can be identified on their number of _______________.
38.
Circle all the letters that apply.
a. Which element has the greatest atomic mass?
b. Which elements do not conduct heat and electricity?
c. Which elements have properties of both metal and non-metal?
d. Which element is a highly reactive alkali metal?
e. Which element is a reactive halogen?
A B C D E
A B C D E
A B C D E
A B C D E
A B C D E
F G H
F G H
F G H
F G H
F G H
39. Draw the Bohr model for Sodium (Na) and Chlorine (Cl).
Sodium
# protons _____
# neutrons _____
# electrons _____
# valence electrons_____
Chlorine
# protons_____
# neutrons _____
# electrons _____
# valence electrons _____
40. If an object has a mass of 6 grams and a volume of 4 cm3, what is the density of the object?
Show your work.
4 cm
41. Find the density of the cube to the right with a mass of 20.0 g.
Show your work.
5 cm
6 cm
42. What is the volume of a rock with a mass of 24.0 g and a density of 1.40 g/mL? show your work
43. Where are the noble gases located on the periodic table? ______________________How many electrons
do they have in their outer shell? __________Can they easily form bonds with other elements? ________
Why or why not?________________________________________________________________________
44. Explain the law of conservation of mass?
_______________________________________________________________________________________
_______________________________________________________________________________________
45. If 50 grams of sodium react with chlorine to form 126 grams of salt. How many grams of chlorine reacted?
46. Explain what is happening in the reaction represented by the equation. Write out the equation in words.
2H2 (g) + O2 (g)  2H2O (l)
_______________________________________________________________________________________
47. Complete the following chart for the 3 particles that make up an atom:
Sub-atomic particle
Charge
Mass
Location in the atom
Proton
Neutron
Electron
Where is most of an atom’s mass located? ____________________________________________________
48. How many milliliters (mL) are in 5 liters (L)? Show your work.
49. How many cubic centimeters (cm3) are in 24 milliliters (mL)? Show your work.
50. How many grams (g) are in 17 centigrams (cg)? Show your work.