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What's the difference between 'por' and 'para'?

'Por' and 'para' convey very different meanings in Spanish and using one instead of the other can change the whole meaning of the phrase. For example:- Trabaja para Carmen - She works for Carmen (i.e. Carmen...
GP
Answered by Genevieve P. • Spanish tutor
4650 Views

Solve the equation:

5 x-3 =7 2x+1 log 5 5 x-3 =log 5 7 2x+1 x-3=(2x+1)log 5 7 x-2xlog 5 7=3+log 5 7 x(1-2log 5 7)=3+log 5 7 x=(3+log 5 7)/(1-2log 5 7)
NH
Answered by Nina H. • Maths tutor
5343 Views

What are the stereochemical implications of bimolecular and unimolecular nucleophilic substitution?

If a chiral molecules undergoes nucleophilic substitution what happens to its stereochemistry? S N 1: These reactions occur with the production of a cationic intermediate. These contain an sp 2 hybrdised car...
HS
Answered by Henry S. • Chemistry tutor
6596 Views

Why are solutions of transition metal ions often coloured

Transition metal ions have, by definition, at least one partly filled d orbital (eg:3d). When in a solution, the positive charge of the transition metal ions can cause the lone elctron pairs of other molecul...
SA
Answered by Stuart A. • Chemistry tutor
8092 Views

What are medical school interviews looking for?

You've spent ages writing your personal statement, working hard on your A Levels/IB, and tackling entrance exams - and it's all paid off, because you've got yourself an interview at a medical school! Whilst ...
RS
3428 Views