Reactions of acids
In this experiment you will investigate three reactions of
acids. You will use hydrochloric acid as a typical acid
SAFETY
SAFETY SPECS MUST BE WORN
HYDROCHLORIC ACID IS CORROSIVE
!! TAKE CARE WHEN HEATING LIQUIDS !!
1. Reaction with a metal carbonate (calcium carbonate)
(a) Add 2 squirts of acid to a test-tube
(b) Assemble your apparatus to collect a gas produced
(c) Add a spatula of calcium carbonate to the test-tube and
collect and test the gas produced
Observations
2. Reaction with a reactive metal (magnesium)
(a) Add 2 squirts of acid to a test-tube
(b) Assemble your apparatus to collect a gas produced
(c) Add two small pieces of magnesium to the test-tube and
collect and test the gas produced
Observations
3. Reaction with a soluble base (sodium hydroxide)
(a) Add 2 squirts of acid to a test-tube
(b) Add a few drops of universal indicator
(c) Add sodium hydroxide, drop by drop, noting any colour
changes
Observations
4. Reaction with a solid base I
(a) Add 2 squirts of acid to a small beaker
(b) Add half a spatula of copper (II) oxide
(c) WARM GENTLY on a LOW heat (you are not collecting any
gas)
Observations
5. Reaction with a solid base II
Repeat the procedure for Reaction 4 using sulphuric acid instead of
hydrochloric acid
Observations
Questions
1. Complete the following general word equations
(a)
Acid + metal carbonate  ______ + ______ + ______
(b)
Acid + metal  ________ + _______
(c)
Acid + base  ______ + ______
2. Write a word equation and a balanced chemical equation for the
five reactions that you performed
1)
2)
3)
4)
5)