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Predict Chemical Reactions and Balance Equations Worksheet, Exercises of Chemistry

5 worksheets divided into different topics on chemical reactions, all exercise questions are answered

Typology: Exercises

2020/2021

Uploaded on 04/20/2021

eklavya
eklavya 🇺🇸

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266 documents

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Worksheet #1
Classification and Balancing of Chemical Reactions
Balance the following equations.
1. ___H2 + ___O2 ___H2O
2. ___H2O ___H2 + ___O2
3. ___Zn + ___H2SO4 ___ZnSO4 + ___H2
4. ___CO + ___O2 ___CO2
5. ___HgO ___Hg + ___O2
6. ___KBr + ___Cl2 ___KCl + ___Br2
7. ___CaO + ___H2O ___Ca(OH)2
8. ___Ag(NO3) + ___NaCl ___AgCl + ___Na(NO3)
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Worksheet

Classification and Balancing of Chemical Reactions

Balance the following equations.

  1. ___H 2 + ___O 2  ___H 2 O

2. ___H 2 O  ___H 2 + ___O 2

  1. ___Zn + ___H 2 SO 4  ___ZnSO 4 + ___H 2

4. ___CO + ___O 2  ___CO 2

  1. ___HgO  ___Hg + ___O 2
  2. ___KBr + ___Cl 2  ___KCl + ___Br 2
  3. ___CaO + ___H 2 O  ___Ca(OH) 2
  4. ___Ag(NO 3 ) + ___NaCl  ___AgCl + ___Na(NO 3 )

Worksheet #

Chemical Reactions with Balancing

Write the word equations below as chemical equations and balance. Identify the reaction type.

  1. zinc and lead II nitrate yields zinc nitrate and lead
  2. aluminum bromide and chlorine yields aluminum chloride and bromine
  3. sodium phosphate and calcium chloride yields calcium phosphate and sodium chloride
  4. potassium chlorate when heated yields potassium chloride and oxygen
  5. aluminum and hydrochloric acid yields aluminum chloride and hydrogen

Worksheet #

More Balancing

Write and balance the following equations. Identify the reaction type.

  1. magnesium and hydrogen chloride produce hydrogen and magnesium chloride
  2. calcium hydroxide and lithium chloride produce lithium hydroxide and calcium chloride
  3. decompose copper (II) oxide into copper and oxygen
  4. aluminum and iron (III) oxide produce iron and aluminum oxide
  5. combustion of butane (C 4 H 10 ) in air to produce carbon dioxide and water

Worksheet #

Types of Reactions, Balancing and Predicting Products

Balance the following equations and also tell what type they are: single displacement, double displacement, synthesis, decomposition or combustion.

  1. ____CaO + _____H 2 O  ______Ca(OH) 2

Reaction type: _________________________

  1. __AgNO 3 + ___NaCl  ___AgCl + ____NaNO 3

Reaction type: _________________________

3. ____H 2 + _____O 2  _____H 2 O

Reaction type: _________________________

  1. ____HgO  _____Hg + _____O (^2)

Reaction type: _________________________

  1. _____H 2 O 2  _____H 2 O + ______O 2

Reaction type: _________________________

Identify the type of reaction, predict the products, write and balance the chemical reaction

  1. magnesium and hydrogen chloride
  2. copper and silver nitrate
  3. sodium chloride and silver nitrate
  4. decomposition of water
  5. magnesium and oxygen
  1. Calcium hydroxide and hydrogen sulfate
  2. Iron (III) chloride + sodium hydroxide
  3. Chlorine + potassium bromide
  4. Lead (II) chloride and lithium sulfate
  5. Magnesium and nitrogen

Section 3: Single Displacement Reaction

  1. Place 10 ml of sulfuric acid (hydrogen sulfate) in a flask.
  2. Add a small amount of zinc metal into the sulfuric acid.
  3. Make observations and a balanced equation.
  4. Clean up your area.

Observations :

Balanced Equation :

Section 4: Double Displacement Reaction

  1. On a watch glass, place 5 drops of potassium iodide solution.
  2. ***Do Not Mix The Droppers up!!!
  3. To the potassium iodide, add 5 drops of lead II nitrate.
  4. Make observations and a balanced equation.
  5. Clean up your area.

Observations :

Balanced Equation :

Section 5: Combustion Reaction

  1. Add 5 drops of isopropanol (C 3 H 7 OH) to a watch glass.
  2. Carefully light the isopropanol with a match, using tongs to keep your hands away from the flame.
  3. Make observations and a balanced equation.
  4. Clean up your area.

Observations :

Balanced Equation :

Precipitate Lab

Silver

Nitrate

Lead II

Nitrate

Copper II

Sulfate

Magnesium

Sulfate

Iron III

Chloride

Sodium

Chloride 1 2 X X X

Potassium

Iodide 3 4 X X X

Sodium

Hydroxide 5 6 7 8 9

Sodium

Carbonate 10 11 12 13 14

Sodium

Phosphate 15 16 17 18 19

For each of the following:

  • Write and balance the chemical equations.
  • Classify the reaction type.
  1. sodium chloride and lead II nitrate yield lead II chloride and sodium nitrate

Equation: ___________________________________________________

Reaction Type = _______________________

  1. zinc hydroxide yields zinc oxide and water

Equation: ___________________________________________________

Reaction Type = _______________________

For each of the following:

  • Predict the products.
  • Balance the chemical equations.
  • Classify the reaction types.
  1. Mg + O 2  ________________________________________

Reaction Type = _______________________

  1. Ba 3 (PO 4 ) 2 + NaClO 4  ______________________________

Reaction Type = _______________________

20. C 4 H 10 + O 2  ___________________________________

Reaction Type = _______________________

For each of the following:

  • Predict the products.
  • Write and balance the chemical reactions.
  • Classify the reaction type.
  1. potassium + bromine  ________________________________________

Equation: ___________________________________________________

Reaction Type: _______________________

  1. silver nitrate + zinc chloride  ____________________________________

Equation: ___________________________________________________

Reaction Type: _______________________

Write the balanced, molecular equation for the reaction. A precipitate may not form in all cases. If a precipitate, does form, please write the complete ionic and net ionic equation.

  1. NaI (aq) + AgNO3(aq) 
  2. BaCl (^) 2(aq) + Na 2 SO4(aq) 
  3. Pb(NO 3 ) (^) 2(aq) + KCl (^) (aq) 
  4. NaOH(aq) + Fe(NO 3 ) 3(aq) 
  5. NaOH(aq) + K 2 SO4(aq) 