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Name and describe the type of bonding in H2O

The bonds in H 2 O are covalent bonds. Covalent bonds are formed when two atoms share a pair of electrons, often where one electron is donated by each atom. This forms a bond as there is an electrostatic att...
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Answered by William S. • Chemistry tutor
3849 Views

(Note this is the kind of exercise I would ask someone who is doing further maths and especially someone MAT/STEP) Sketch the graph of y=sin(1/x)

First of all we want to think about the general behaviour of the function. Does it grow as x grows? Does it oscillate? Does it tend to a limit? We also need to think about if there are any worrying points in...
JT
Answered by James T. • MAT tutor
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Analyse representation of age in the media today.

Representation is how someone or something is portrayed. Ageism is a growing concern in modern media with each age group’s mainstream representation increasingly confined to narrow stereotypes. The most unde...
Answered by • Media Studies tutor
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How to approach and analyse historiography

Historiography refers to different historians’ written interpretations of events and periods of history. In order to analyse different historians’ arguments, it is important to determine how far the historia...
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Answered by Flo B. • History tutor
12592 Views

What role do calcium ions play in contraction of the sarcomere? (4 marks)

When an action potential arrives at the motor end plate it causes depolarisation to occur in the sarcolemma of the effector muscle cells.2) Depolarisation spreads via T-tubules to the sarcoplasmic reticulum ...
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Answered by Ben W. • Biology tutor
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