Test 5-2 Review
1.
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Name _________________________
Balancing and Equations
Understand how to balance chemical equations.
Be familiar with the abbreviations for different states of matter; (s),(g),(l),(aq),(ppt).
Recognize which are the reactants and products in a chemical equation.
Remember how to predict products and recognize the five types of chemical reactions; single
replacement, double replacement, combustion, decomposition, composition/synthesis.
Balance each of the following and determine type of reaction.
1. ____Ag2O
____ Ag + ____ O2
________________________
2. ____ S8 + _____ O2
________________________
3. ____ K + _____MgBr2
_____SO3
_____ KBr + _____Mg
4. _____ AgNO3 + _____MgCl2
________________________
_____ AgCl + Mg(NO3)2
_______________________
5. _____ AlBr3 + _____ K2SO4
_____ KBr + _____ Al2(SO4)3
________________________
6. _____ CH4 + _____O2
_____ CO2 + _____H2O
________________________
7. _____C3H8 + _____ O2
_____ CO2 + _____ H2O
________________________
8. _____ C8H18 + _____ O2
2.
_____ O2 + _____ H2O
________________________
Nomenclature
Use your flow chart to help name the compounds listed below or determine the chemical
formula.
1. _________________________ Na2S
2. _________________________ Li2O
3. _________________________ Al(NO3)3
4. _________________________ ZnCl2
5. _________________________ K3(PO4)
6. _________________________ CaF2
7.
____________ sodium fluoride
8.
____________ potassium chloride
9. ____________ barium iodide
10.
____________ rubidium bromide
11. ____________ lithium selenide
12.
____________ strontium oxide
3.
Predicting Products
Look over the Writing Reactions Worksheet. You will be asked to write a chemical equation and
balance it. You will be able to use your “Reminders for Writing Rxn” sheet that we went over in
class.
4.
Molar Mass
Be able to calculate molar mass (g). Find using the Periodic Table
1.
2.
KCl
Na2SO4
5.
Previous Concepts to Focus on and Remember
A)
VSEPR drawings. Draw the Lewis dot structure, identify the electronic and molecular geometries
of known compounds, and determine polarity.
B)
________
________
3.
4.
Al2(SO4)3
H2CO3
1.
H2O
3.
PO4-3
2.
KCl
4.
CO2
_________
_________
The atom and its subatomic particles. What are isotopes? What are valence electrons? What
information does the isotopic notation gives us. Determine # electrons, neutrons, and protons.
Example:
20 -1
F
9
1.
Draw the isotopic notation for an atom that has 33 protons, 60 neutrons, and 31 electrons
2.
Draw the isotopic notation for an atom that has 5 neutrons, 3 protons, and 4 electron
3.
Draw the isotopic notation for an atom that has 55 protons, 47 neutrons, and 50 electrons
C)
Physical/Chemical changes/properties: Remember how to recognize the difference between
them.
1.
dissolving Borax
5.
a mass of 135g
2.
rotting wood
6.
a volume of 3.5 mL
3.
Silicon has luster
7.
Mg produces light when burned
4.
Water freezes
8.
Dissolving Kool-aid in water
D)
Element, Cpds, Mixtures – be able to determine what different substances are.
1.
telephone
5.
omlete
9.
sand
2.
light bulb
6.
clear marble
10.
bronze
3.
rust
7.
peanut butter
11.
NaBr
4.
platinum
8.
Sand
12.
O2 + K3N
6.
Labs
Look over labs conducted during class. Especially the “Rate of Solvation” lab, “Coefficient” lab,
and “Types of Reactions Demos”.