Top answers

Could you explain why water has a high latent heat of vapourisation?

A water molecule is polar. Due to the uneven sharing of electrons in the hydrogen-oxygen covalent bond, the oxygen molecule is slightly negatively charged and the hydrogen atoms are slightly positively charg...
SJ
Answered by Steffan J. • Chemistry tutor
8226 Views

To what extent was Stalin’s treatment of opposition a divergence from Lenin’s approach? Answer with reference to the years 1917-41.

This is a standard A level Russian/Soviet history essay title.points may include:Similarities - establishment of a one-party state, use of political terror and silencing of opponents, class warfare, secret p...
RF
Answered by Rachel F. • History tutor
2818 Views

Could you describe the blood flow through the heart?

Blood flows through human bodies via a double circulatory system, the systematic system and the respiratory system, which are connected by the heart. Blood enters the right atrium of the heart from the vena ...
SJ
Answered by Steffan J. • Biology tutor
3290 Views

'The success of the Conservatives in the period 1886-1905 was the result of the Liberals' failures.' Assess the validity of this view.

The failures of the Liberal Party within the period 1886-1905 were key to the success of the Conservatives. The culmination of Gladstone's dramatic conversion to Home Rule (which disastrously split the party...
MW
Answered by Molly W. • History tutor
6659 Views

What is a valid argument?

A valid argument is one where if the premises are all true then it is impossible for the conclusion to be false. E.g. P1: If Glasgow is in Scotland then Glasgow is in the UK P2: Glasgow is in Scotland Conclu...
JA
2502 Views