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What is the Verification Principle?

The Verification Principle (VP), developed by A J Ayer in Language, Truth and Logic (1936), was a set of criteria that determined what constitutes meaningful language. Inspired by the Wittgen...

Answered by Michelle C. • Religious Studies tutor

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How do I know when to use 'à' vs. 'de'? French preposition help!

There are various rules in French which can help you to choose the right preposition. Below are the rules for the preposition à.

used to r...

Answered by Imogen C. • French tutor

11477 Views

How does the ionisation energy differ across period 2 from Li to Ne?

The ionisation energy across a period increases as the effective nuclear charge increases but the shielding stays the same.

Answered by Hannah G. • Chemistry tutor

15657 Views

What is a catalyst?

A catalyst lowers the activation energy of a reaction and therefore increases the rate of reaction. The catalysts reacts with the reactants but is regenerated again i...

Answered by Hannah G. • Chemistry tutor

5027 Views