It’s elemental - a forum for Y12 Chemistry students

Well, we’re right into it now. This site contains an interactive quiz that will help you practise assigning oxidation numbers. I encourage you all to work through it.

I wonder how many years it took for someone to get this chemical compound’s name all in the right order…..

methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylglutamin-

ylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanylvalylprolyl-

phenylalanylvalylthreonylleucylglycylaspartylprolylglycylisoleucylglutamylglu-

taminylserylleucyllysylisoleucylaspartylthreonylleucylisoleucylglutamylalanyl-

glycylalanylaspartylalanylleucylglutamylleucylglycylisoleucylprolylphenylala-

nylserylaspartylprolylleucylalanylaspartylglycylprolylthreonylisoleucylgluta-

minylasparaginylalanylthreonylleucylarginylalanylphenylalanylalanylalanylgly-

cylvalylthreonylprolylalanylglutaminylcysteinylphenylalanylglutamylmethionyl-

leucylalanylleucylisoleucylarginylglutaminyllysylhistidylprolylthreonylisoleu-

cylprolylisoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylva-

lylphenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyltyro-

sylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylserylvalylleu-

cylvalylalanylaspartylvalylprolylvalylglutaminylglutamylserylalanylprolylphe-

nylalanylarginylglutaminylalanylalanylleucylarginylhistidylasparaginylvalylala-

nylprolylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylas-

partylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryltyrosyl-

glycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginylalanylglycyl-

valylthreonylglycylalanylglutamylasparaginylarginylalanylalanylleucylprolylleu-

cylasparaginylhistidylleucylvalylalanyllysylleucyllysylglutamyltyrosylasparagi-

nylalanylalanylprolylprolylleucylglutaminylglycylphenylalanylglycylisoleucylse-

rylalanylprolylaspartylglutaminylvalyllysylalanylalanylisoleucylaspartylalanyl-

glycylalanylalanylglycylalanylisoleucylserylglycylserylalanylisoleucylvalylly-

sylisoleucylisoleucylglutamylglutaminylhistidylasparaginylisoleucylglutamylpro-

lylglutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalanylvalyl-

glutaminylprolylmethionyllysylalanylalanylthreonylarginylserine, n.:

The chemical name for tryptophan synthetase A protein, a

1,913-letter enzyme6 with 27 amino acids.

S-cool is generally regarded as one of the UK’s best revision sites. This link will take you to the A-Level Chemistry pages.

This material is all from a BBC site. To save you time I have put links below to the sections relevant to our the New Zealand Level 2 NCEA prescription.

This section neatly and concisely summarises chemical equilibrium in just two pages, including some helpful animations.

For practice at naming organic compounds and the reactions of carbon compounds try these pages.

For acids and bases practice, including some interactive questions, go to this page. And try balancing some redox reactions after you have read through this page.

Finally, have a look at these pages for some excellent revision of structure and bonding.

This link takes a light-hearted look at a Chemistry exam. Enjoy.

Good luck on Tuesday - give it your best, and don’t leave any blank spaces - but only if you can’t avoid this.

1. H2O is hot water, and CO2 is cold water.

2. To collect fumes of sulphur, hold a deacon over a flame in a test tube.

3. When you smell an odourless gas, it is probably carbon monoxide.

4. Water is composed of two gins, Oxygin and Hydrogin. Oxygin is pure gin. Hydrogin is water and gin.

5. A super saturated solution is one that holds more than it can hold.

6. Liter: A nest of young puppies.

7. Magnet: Something you find crawling all over a dead cat.

8. Momentum: What you give a person when they are going away.

9. Vacuum: A large, empty space where the pope lives.

10. Artificial insemination is when the farmer does it to the cow instead of the bull.

11. The pistol of the flower is its only protection against insects.

12. A fossil is an extinct animal. The older it is, the more extinct it is.

13. To remove dust from the eye, pull the eye down over the nose.

14. For a nosebleed: Put the nose much lower that the heart until the heart stops.

15. For head colds: use an agonizer to spray the nose until it drops in your throat.

16. Germinate: To become a naturalized German.

17. The tides are a fight between the Earth and moon. All water tends towards the moon, because there is no water on the moon, and nature abhors a vacuum. I forget where the sun joins in this fight.

18. Blood flows down one leg and up the the other.

This site neatly summarises the factors affecting rates of reaction.

Here you can complete an interactive quiz on acids and bases.

This page is an interactive quiz on dynamic equilibrium. Ignore the “calculator” at the top, please, and use your own. You could also try the interactive quizzes on the same topic on this site.

How good are you at predicting molecular shapes and bond angles. Try these interactive quizzes. Then try some of these quizzes about intermolecular forces.

And finally, what do you still remember about redox?

The interactive tasks on this site are all written by the authors of the textbook you use - “Beginning Chemistry”. So click here for some exam revision.

Well, you’ve all seen it at some stage. If you like singing along, here it is on YouTube.