CHEMISTRY, M3 EQ-Bank 29v3

Write balanced chemical equations for each of the following reactions (states of matter are not required).

The reaction between iron and sulfuric acid. (1 mark)

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The decomposition of sodium carbonate. (1 mark)

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The incomplete combustion of propene (\(\ce{C3H6}\)) with a limited amount of oxygen. (1 mark)

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The reaction between calcium hydroxide and phosphoric acid. (1 mark)

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The reaction between sodium carbonate and nitric acid. (1 mark)

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Show Answers Only

a. \(\ce{Fe + H2SO4 -> FeSO4 + H2}\)

b. \(\ce{Na2CO3 -> Na2O + CO2}\)

c. \(\ce{2C3H6 + 9O2 -> 6CO + 6H2O}\)

d. \(\ce{3Ca(OH)2 + 2H3PO4 -> Ca3(PO4)2 + 6H2O}\)

e. \(\ce{Na2CO3 + 2HNO3 -> 2NaNO3 + CO2 + H2O}\)

Show Worked Solution

a. Active metal and acid

\[\ce{Fe + H2SO4 -> FeSO4 + H2}\]

b. Decomposition

\[\ce{Na2CO3 -> Na2O + CO2}\]

c. Combustion

\[\ce{2C3H6 + 9O2 -> 6CO + 6H2O}\]

d. Acid-Base

\[\ce{3Ca(OH)2 + 2H3PO4 -> Ca3(PO4)2 + 6H2O}\]

e. Acid-Carbonate

\[\ce{Na2CO3 + 2HNO3 -> 2NaNO3 + CO2 + H2O}\]