Writing and Balancing Chemical Equations

Problem SetIn this topic, you have learned how to balance equations by taking an atom inventory and then using one of several strategies. Using your knowledge writing and balancing equations, complete the activity below.

This activity is available below or in printable version.

Part I

Balance all of the equations by placing a coefficient in the correct location.

  1. CO + O2 → CO2
  2. K + H2O → KOH + H2
  3. NaOH + H2SO4 → Na2SO4 + H2O
  4. Al + H2SO4 → Al2(SO4)3 + H2
  5. NH4NO2 → N2 + H2O
  6. NH3 + CuO → Cu + N2 + H2O
  7. C2H6 + O2 → H2O + CO2
  8. P4O10 + H2O → H3PO4

Part II

After reading the equation, write a complete and balanced equation for the reactions below.

  1. Iodine crystals react with chlorine gas to form solid iodine trichloride.
  2. Sodium and water produces sodium hydroxide and hydrogen gas.
  3. When heated, solid calcium carbonate breaks down into solid calcium oxide and carbon dioxide gas.
  4. When silver (I) nitrate and sodium chloride solutions are mixed, a solution of sodium nitrate is produced along with a precipitate of silver (I) chloride.

Assignment
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