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Why is cyclohexa-1,3,5-triene no longer accepted for the structure of benzene where the molecular formula is C6H6? Which is more stable and why?

This question requires understanding of the structure of benzene and forces the student to be able to describe why cyclohexa-1,3,5-triene is unable to be used to describe the structure of benzene. As benz...

Answered by Shabri S. Chemistry tutor
27250 Views

Explain the effect of raising the temperature of exothermic equilibrium reaction.

Raising the temperature of an exothermic reaction will cause the equilibrium to move to the left, reducing the proportion of the product in the mixture. Exothermic reactions release heat and the reverse ...

Answered by Matthew B. Chemistry tutor
2255 Views

What's your advice for approaching source questions in a GCSE history paper?

This really depends on the question; for example if it is asking you if Source C supports the evidence given in Source A you must make sure you focus throughout on comparing and contrasting the evidence g...

Answered by Elizabeth M. History tutor
1716 Views

What tips do you have to prepare for an oral exam?

It slightly depends on the exam board, but if you're able to prepare your answers in advice make sure you know your responses inside out! An oral exam can be a stressful environment so the more familiar y...

Answered by Elizabeth M. French tutor
1481 Views

Find the length of X and Y of these two right angled triangles (pictured) and prove their congruence, stating the rule.

(draws two right angled triangles, one with sides 3 and 4 units with the hypotenuse labelled 'x', one with a side labelled 4 units and 'Y' with the hypothenuse labelled 5 units).
The answer is in two...

Answered by Megan H. Maths tutor
2484 Views

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