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Karen got 32 out of 80 on a Maths test. She got 38% on an English test. Which test did she do better in?

32 out of 80 on a Maths test38% on an English test As we don't know any other information about the English test (e.g. her mark and the total mark) the only way that we can compare the two results is by usin...
VC
Answered by Vicky C. Maths tutor
12892 Views

Explain in terms of ΔG, why a reaction for which both ΔH and ΔS are positive is sometimes spontaneous and sometimes not.

For a reaction to be spontaneous delta G has to be negative according to the equation delta G = delta H - TdeltaS. Therefore if the temperature of a reaction is very high then -TdeltaS will be greater than d...
AC
Answered by Aaron C. Chemistry tutor
18048 Views

How do you create commands (imperatives) in Spanish?

There are two basic forms of imperatives, negative imperatives and positive imperatives, and these can be divided into informal (tú) and formal commands (ustedes/ vosotros). Let's start with the positive imp...
LC
Answered by Lauren C. Spanish tutor
4262 Views

What's the best way to revise for my exam?

I always found that the best way to revise, above anything else, was making sure I knew exactly what was going on in the text I was studying. You can do this by re-reading the text and by checking SparkNotes...
LC
5058 Views

How do I write a good paragraph?

Good paragraphs come in all shapes and sizes, although this doesn't necessarily help you to prepare effectively for an exam, so a little extra guidance may be needed. Here's a good basic guide to writing a s...
LC
4191 Views