Give the name of the salt that is made in this reaction.
Deduce the volume of hydrogen gas made in the first two minutes of the reaction.
Put a letter S on the graph to indicate that the reaction is becoming slower but has not yet stopped completely.
Draw a line on the grid to show how the volume of hydrogen gas changes with time when the reaction is repeated with a catalyst. Keep all the other conditions the same.
What effect do the following have on the rate of this reaction? • Decreasing the temperature at which the reaction is carried out. Keep all other conditions the same. • Using zinc powder instead of small pieces of zinc. Keep all other conditions the same.
Describe a test that can be used to identify hydrogen. test used result seen
Arrange the five metals in order of reactivity. Put the most reactive metal first.
Calculate the greatest mass of zinc sulfide that can be formed when $3.25\,\text{g}$ of zinc reacts completely with sulfur.