(a)[3]
Describe the method you would use to collect pure dry solid silver dichromate after silver nitrate solution and ammonium dichromate solution have been mixed.
(b(i))[1]
Deduce what charge the dichromate ion has in $\text{Ag}_2\text{Cr}_2\text{O}_7$.
(b(ii))[1]
Write the ionic equation for the formation of silver dichromate in this reaction. State symbols are not required.
(c)[2]
State and explain what change would be seen on the Universal Indicator paper.
(d(i))[3]
Explain why a red solid formed along the line marked S.
(d(ii))[2]
How, if at all, would the time for the red solid to appear change? Explain your answer.
(e(i))[2]
What does thermal decomposition mean?
(e(ii))[2]
Write a chemical equation showing the thermal decomposition of ammonium dichromate.