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GCSE

When do I use the subjunctive tense?

It's better to think of the subjunctive as a mood rather than a tense. As a general rule, it is used to express a feeling of uncertainty in a sentence.

 

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JO
Answered by Jordan O. Spanish tutor
4087 Views

When should I use qui/que/ce qui/ce que?

Qui, que, ce qui and ce que are all relative pronouns. This means that they link a noun with a relative clause. 

SJ
Answered by Shannon J. French tutor
20151 Views

What is a racemic mixture?

To explain a racemic mixture it is firstly necessary to explain what an enantiomer is.

Enantiomers are stereoi...

KG
Answered by Katie G. Chemistry tutor
24272 Views

What is the difference between a weak and strong acid?

To answer this question it is easiest to firstly define both a weak and strong acid.

A strong acid is an acid that completely dissociates into its component ions in solution.

A weak ac...

KG
Answered by Katie G. Chemistry tutor
7059 Views

How do you calculate pressure?

Pressure is the force exerted by one object on another object over a given area of contact. 

The following equation can help understand and also explain how pressure works: 

pressure =...

MH
Answered by Marc H. Science tutor
7529 Views

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