Daily Practice

GCSE Science

3rd May 1976

5 questions · GCSE · 584 questions in this band

1
Concentration, Yield and Atom Economy
Why do companies prefer reactions with a high atom economy?
2
Chemical Changes
State the pH value of a neutral solution.
3
Reactivity, Acids and Salts
State what is observed when magnesium ribbon is added to copper sulfate solution.
4
Electrolysis
Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
5
Energy Changes
Using the values in the previous question, calculate the overall energy change for the reaction.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1976, including the monthly compilation PDF.