Week 7 - Chemical Reactions and Writing Chemical Equations
Task 1 Laboratory Session -Types of Chemical Reactions
- Conduct the laboratory session.
- Record observations
- Write word equation for the reaction
- Write a balanced chemical equation for each reaction
Task 2 Writing Chemical Equations
You need;
Valency table and your results.
(l) liquid
(g) gas
(aq) aqueous solution
Valency table and your results.
- For each reaction write the reaction in words.
- Beneath each equation write the correct chemical formula for each reactant and product.
- Now balance the type and numbers of atoms/ions of each reactant and product.
- Use the Solubility Table of Ionic Solids to find the name of any precipitate.
- Write subscripts beneath each formula in your equation;
(l) liquid
(g) gas
(aq) aqueous solution
Task 3 Reactions of oxides to form acids and bases and writing equations for the reactions.
Synthesis of magnesium oxide.
Wear safety glasses.
Part 1
Dry Ice (Solid carbon dioxide)
Follow the instructions on the powerpoint to discover what is formed when a non-metal oxide such as carbon dioxide dissolves in water.
Wear safety glasses.
Part 1
- Set up a bunsen burner on a protective mat. Gather a box of matches, a pair of tongs, a piece of magnesium ribbon.
- Light the bunsen burner and using the tongs ignite a piece of magnesium ribbon. Take care not to look at the flame.
- In your Science notebooks record what you did and your observations.
- Write a chemical word equation for this reaction.
- Write a balanced chemical formulae equation for this reaction.
- Add the subscripts.
- Gather a gas jar and lid, a bottle of universal indicator and a chart.
- Pour about 10mL water into a gas jar, add universal indicator and replace the lid.
- Note the colour of the universal indicator.
- Light the bunsen burner and using the tongs ignite a piece of magnesium ribbon. Take care not to look at the flame.
- Drop the burning magnesium into the water in the gas jar and replace the lid.
- In your science notebook record what you did and your observations.
- Write a chemical word equation for this reaction.
- Write a balanced chemical formulae equation for this reaction.
- Add the subscripts.
Dry Ice (Solid carbon dioxide)
Follow the instructions on the powerpoint to discover what is formed when a non-metal oxide such as carbon dioxide dissolves in water.
- Write a chemical word equation for this reaction.
- Write a balanced chemical formulae equation for this reaction.
- Add the subscripts.