Homework Part 1:The Effect of a catalyst.
Reactive metals will dissolve in mineral acids (sulphuric, nitric, hydrochloric) to produce a salt and hydrogen gas.
Watch the video of the experiment you carried out last lesson and do an experimental write up under these headings.
Diagrams (neat and labelled)
Method : bullet points giving clear instructions so that someone else could come along and repeat your experiment
Discussion : What is the role of a catalyst and why were copper shavings placed in a test tube with acid before adding the zinc?
Homework Part 2. Acid and metal word equations.
In the video we saw that reactive metals dissolved in mineral acids to form a salt and release hydrogen gas.
Copy down these word equations after your experimental write up and complete them The first one has been done for you.
Zinc + sulphuric acid —–> zinc sulphate + Hydrogen
Zinc + nitric acid —–>
Magnesium + hydrochloric acid —–>
Iron + sulphuric acid —–>
Aluminium + nitric acid —–>
Copper + hydrochloric acid —–>
Homework part 3: describe carefully how you would test for hydrogen gas