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1a) Describe the difference between strong and weak acids. 1b) HCl is a strong acid. Draw the spin diagram for a chlorine atom.

1a) Strong acids fully dissociate in water, whereas weak acids only partially dissociate in water - thus forming an equilibrium mixture.
1b) See diagram.

Answered by Chemistry tutor
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In a village the number of houses and the number of flats are in the ratio 7 : 4 the number of flats and the number of bungalows are in the ratio 8 : 5 There are 50 bungalows in the village. How many houses are there in the village?

first combine into one ratio by finding lowest common multiple between common category so houses:flats:bungalow = 14:8:5. then for every 5 bungalows to every 14 houses so 50/5 = 10 and 10 x 14 = 140. so t...

Answered by Maths tutor
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Explore the ways in which the writer of the great Gatsby presents corruption

First of all I would begin by writing a mind map detailing any thing about corruption in the novel: quotes, characters, literary techniques etc to get all ideas down.
Continuing on I would advise the...

Answered by English tutor
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Outline two cultural factors that may affect ethnic differences in educational achievement. (4 marks)

Remember this is a four mark question, which means two factors (one mark each) and one explanation for each one. Many answers will be accepted.1 - language. Some pupils may speak a different language at h...

Answered by Patricia M. Sociology tutor
3214 Views

A curve is described by f(x) = x^2 + 2x. A second curve is described by g(x) = x^2 -5x + 7. Find the point (s) where both curves intersect.

To find the points where two curves meet a difference function needs to be calculated. This function is formed by subtracting one function from the other: d(x) = f(x) - g(x). It also works the other way a...

Answered by Maths tutor
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