Name: ______
Unit 2 Test – Review
Test Date: Monday March 27th, 2017
Lunch Help: Friday and Monday in room 403
Topics on test:
1. Bonding (ionic and covalent bonding, Lewis structures, structural diagrams)
2. Properties of Ionic and Molecular compounds (boiling point, melting point, conductivity, etc.)
3. Nomenclature (naming all compounds – including acids)
4. Balancing reactions
-work from words to a balanced chemical equation (with states of matter)
5. Types of reactions (Synthesis, Decomposition, Single Displacement, Double Displacement, and Combustion)
-Name the type of reaction
-Predict the products of a reaction (don’t forget that the specific different types
-example: acid and a base react to form a salt and water
**emphasis on the last three topics.
Review Questions
1. Balance the following reactions:
a) ____ AlCl3 + ____ (NH4)2S à ____ Al2S3 + ____ NH4Cl
b) ____ Na +____ H2O à ___ NaOH + ____H2
c) ____ C2H6 + ____ O2 à ___ CO2 + ____ H2O
2. Predict the reactants and/or products of the following reactions. If the reaction will occur, write the balanced chemical equation. State NR if no reaction occurs. Include states of matter.
a) The synthesis of carbon monoxide
b) The decomposition of rubidium carbonate
c) A neutralization reaction between sulfuric acid and lithium hydroxide
3. For the following reaction, identify all reactions that could occur by writing balanced chemical equations: Solid iron reacts with liquid bromine
4. Predict the products of the following reaction:
Aqueous barium nitrate reacts with aqueous aluminum sulfate
5. The following two oxides are reacted with water. For each reaction:
i. State whether an acid or a base will be formed. Explain your choice.
ii. Write a balanced chemical equation for the reaction. Include states of matter.
a) BaO (s)
b) CO2 (s)
6. Identify the type of chemical reaction: (If needed, be more specific)
a) (NH4)2Cr2O7 (s) à Cr2O3 (s) + N2 (g) + 4 H2O (g) ______
b) 2 H2 (g) + O2 (g) à 2 H2O (g) ______
c) 2 Al (s) + 3 CuCl2 (aq) à 2 AlCl3 (aq) + 3 Cu (s) ______
d) NaOH (aq) + HBr (aq) à NaBr (aq) + H2O (l) ______
e) C6H14 (l) + 5 O2 (g) à CO2 (g) + CO (g) + 4 C (s) + 7 H2O (g) ______
7. Name the following compounds:
a) NI3 ______b) Ba(OH)2 ______
c) SnBr2 ______d) Na2CO3 ______
2. Write the formulas for the following compounds:
a) aluminum sulphate b) copper (II) chloride c) nitrogen dioxide
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