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Which compound has a higher boiling point and why: water (H2O) or methane (CH4)?

Water has a higher boiling point because the hydrogen bonds that form among water molecules are stronger than the Van der Waals interactions among methane molecules, thus more energy must be provided in o...

MD
Answered by Maria D. Chemistry tutor
41962 Views

How do you find (and simplify) an expression, in terms of n, for the sum of the first n terms of the series 5 + 8 + 11 + 14 + ... ?

Normally, this would be quite hard! We'd have to play around with the sequence and try different formulas until something worked. Luckily, this is what we call an "Arithmetic Series". That's bec...

MS
Answered by Matthew S. Maths tutor
18995 Views

Discuss the possible criminal liability of Adam for the injuries to Brandon and to Calvin. Discuss the possible criminal liability of Calvin arising out of his shouting at Adam.

(Source based)

Battery is a summary offence (no more than 6 months in prison). It is found when the defendant inflicts unlawful, personal violence upon the Victim, as found in the case of Cole v Tu...

SW
Answered by Sam W. Law tutor
7225 Views

Why does the nervous system have synapses if they slow down transmission?

Synapses are chemical connections between neurons which do indeed slow down transmission. However, they provide the nervous system with many benefits that could not be achieved without them: They ensure t...

SJ
Answered by Samuel J. Biology tutor
20404 Views

The genetic code is described as being degenerate. What does this mean? and why ?

We say that the genetic code is degenerate because there are several codons, which code for the same amino acid. For example UCA, UCU, UCG and UCC all code for Serine. 

This is due to the fact that...

MD
Answered by Maria D. Biology tutor
13487 Views

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