Name: ______Date: ______Period: ______

Unit 5 Test Study Guide

Concepts:

□Know your 9 polyatomic ions!!!

□How to write ionic and molecular formulas from the names

  • Ionic  Write the ion symbols, cross over & down, simplify if needed!
  • Covalent  Write the symbols, add prefixes as subscripts

□The five types of reactions: single displacement, double displacement, combustion, synthesis, and decomposition (know generic equations for each)

□Writing Chemical Reactions as Chemical Equations

  • Be able to identify products, reactants, states of matter
  • What are the signs a chemical reaction has occurred?

□Balancing Chemical Equations

  • Write a RAP table, Keep polyatomic ions together, write H2O and H(OH) if needed, if you need to write 3.5 to make it balanced, multiply everything by 2! You can only add/change coefficients!

□Predicting Single Displacement Reactions using the Activity Series

□Predicting Double Displacement Reactions

□Reaction Kinetics – what are the factors that affect reaction rates?

Practice Problems:

  1. Using the following reaction, answer the questions below:

______Na (s) + ______H2O (l)  ______NaOH (aq) + ______H2 (g)

  1. What are the reactants in this reaction? ______
  2. What are the products in this reaction? ______
  3. What does (s) stand for? ______
  4. What does (l) stand for? ______
  5. What does (aq) stand for? ______
  6. What does (g) stand for? ______
  7. What is the 2 in H2O called? ______
  8. To balance the equation, you would need to add subscripts / coefficients / ions / prefixes (circle one)
  9. Balance the equation.
  10. What type of reaction is this? ______
  11. If I heated the H2O before the reaction, what effect would it have on the reaction? Why?
  1. Classify & Balance the following reactions:

______a. ______NaNO3 + ______PbO ______Pb(NO3)2 + ______Na2O

______b. ______AgI + ______Fe2(CO3)3 ______FeI3 + ______Ag2CO3

______c. ______C2H4O2 +______O2 ______CO2 +______H2O

______d. ______ZnSO4 + ______Li2CO3______ZnCO3 + ______Li2SO4

______e. ______V2O5 + ______CaS ______CaO + ______V2S5

f. ______S +______HNO3______H2SO4 +______NO2 +______H2O

g. ______Cu +______HNO3______Cu(NO3)2 +______NO +______H2O

  1. Balance & Classify
  2. Iron + chloride  Iron (II) chloride
  3. Zinc + Copper (I) Sulfate  Zinc sulfate + copper
  4. Magnesium fluoride + ammonium nitrate  Magnesium nitrate + ammonium fluoride
  5. Name the type of reaction for each of the following:
  6. Aluminum oxide and iron react to form iron (II) oxide and aluminumType: ______
  7. Ammonium nitrate breaks into dinitrogen monoxide and waterType: ______
  8. Reactions where two ionic compounds switch ionsType: ______
  9. In a ______reaction, a hydrocarbon and reacts with oxygen to make carbon dioxide and water
  10. Two reactants combine into one productType: ______
  1. For each of the following reactions, predict the products of the reaction. If no reaction would happen, say “no reaction”. Then balance the equations.
  2. Al + H2SO4
  3. Zn + HCl
  4. Aluminum + calcium oxide
  5. Iron (III) oxide + hydrogen gas
  6. For each of the following reactions, predict the products of the reaction.
  1. Al(NO3)3+ Na2CO3b. NaCl + H2SO4 c. Sodium hydroxide + iron (II) sulfate
  1. Imagine you are designing an experiment around the following reaction. Predict what will happen for each variable you change (fill in the table below). KI (aq) + Cl2 (g) KCl (aq) + I2 (aq)

If we... / Then… / Because…
Increase the pressure on the chlorine gas(***increasing pressure of a gas is like increasing concentration of a liquid)
Heat up the reactants
Use a higher concentration of potassium iodide
  1. Imagine you are designing an experiment around the following reaction. Predict what will happen for each variable you change (fill in the table below). Fe (s) + CuNO3 (aq)  Cu (s) + Fe(NO3)2 (aq)

If we... / Then… / Because…
Use lots of small pieces of iron
Use less copper (I) nitrate
Add a catalyst
Replace iron with sodium