since exams are around the corner. i guess people need to ease off. so read, sit back and enjoy. (answers in bold)

1) When acidified potassium permanganate is added to a solution of sodium iodide, a reaction occurs.

i) Write a balanced equation for the reaction by writing balanced half equations and combining them.

MnO4- -> something
something else -> another thing

stuff -> other stuff

ii) Which species is the oxidant (oxidising agent) in this reaction? 1st one
Justify your answer guess

iii) Describe what you would observe as this reaction took place. Link your observations to the species involved.

Add contents of packet and return to boil whilst stirring continously. Simmer on a medium heat for 10 minutes.

Sauce will thicken on standing. Serves 4.


This is another question.


ii) Write a balanced equation for the reaction at the positive electrode.
2+3=7

iii) Write a balanced equation for the reaction at the negative electrode.
fork + shoe = spleen

iv) Explain why the concentration of sulphate ions increases in the electrolyte.

Aliens. Damn aliens are responsible for everything weird that's going on around here.


This is classic. Last question.


iii) Explain why an atmosphere of argon is required in the second stage.

I'd say again it was probably those damn aliens again. Them and their illegal moon rock trade. Always trying to kidnap all the argon.


i think im a bit stressed. haha. cos everything seems a bit funny to me. heh. gd luck for exams people.