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.

Aim

Equipment

Diagrams (neat and labelled)

Method : bullet points giving clear instructions so that someone else could come along and repeat your experiment

Results

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

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