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Describe and explain the difference in base strength between ammonia, primary aliphatic and primary aromatic amines.

Alkyl groups increase basicity because: 1) They push electron density onto the nitrogen atom, which makes the nitrogen lone pair more attractive to hydrogen ions. 2) They stabilise the positive charge on ...

Answered by Sophie B. • Chemistry tutor

9947 Views

When is the congiuntivo used? What is an easy way to remember the conjugation?

The congiuntivo (subjunctive) is one of the verb moods that even native Italian speakers tend to have the most trouble with. It is used to describe a hypothetical scenario, or it may follow verbs expressi...

Answered by Margherita L. • Italian tutor

1481 Views

What is the best way to structure an English Internal Oral Commentary (IOC)?

There is no one way to structure an IOC properly, but having a solid structure is essential if you wish to achieve high marks. It mainly depends on what the text type is. If you are analysing a poem, it m...

Answered by Margherita L. • English tutor

2123 Views

What is the difference between the past tenses "imperfetto" and "passato prossimo"?

Both past tenses are highly used in verbal and written communication. Imperfetto is used when we are talking about a recurrent action in the past (i.e Da bambino andavo al mare tut...

Answered by Melania G. • Italian tutor

2047 Views

A class of pupils were asked about how they travelled to school on a particular day. 1/6 of the pupils were driven to school in a car. 2/5 of the pupils took the bus. The rest of the pupils walked to school. Calculate the fraction of pupils who walk

The total amount of student would be represented by 1 or 100%. The pupils are split into three categories meaning the total must add up to 1. Therefore to find the remaining pupils who walked to school we...

Answered by Jane Z. • Maths tutor

5970 Views