Record your observations from the reaction that occurs when a clean ribbon of magnesium is burnt in air.
Important Questions on Question Bank
The following materials are supplied to you: stand, iron nail, test tube, copper sulphate solution and sand paper. Describe an activity to carry out the reaction between iron and copper sulphate and identify the type of reaction.
Why is a magnesium ribbon cleaned before burning?
Write a balanced chemical equation with symbols of physical state of the reactants and products for the following reaction:
An aqueous solution of barium chloride when mixed with an aqueous solution of sodium sulphate produces a colourless precipitate of barium sulphate and sodium chloride is left in the solution.
Write a balanced chemical equation with symbols of physical states of the reactants and products for the following reaction:
Nitrogen gas combines with hydrogen gas to form ammonia.
What is a chemical equation? How is a chemical equation made more informative?
What do you mean by a balanced chemical equation? Balance the following equation:
