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Why can graphite be used as a lubricant?

Between the carbon layers in graphite there are van der waal forces which are very weak. Therefore, the layers of carbon atoms are able to slide over each other allowing graphite to be used as a lubricant.
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Answered by Rana D. • Chemistry tutor
23657 Views

Describe the mechanics of breathing which cause inspiration at rest. (3)

The External intercostals contract and the diaphragm flattensPulling the thoracic cavity up and out This then increases the volume of the thoracic cavity, Causing a reduction of pressure in the lungs compare...
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3814 Views

How do I structure my essay and manage my time in the exam?

The best way to structure your essay is to understand exactly what the question is asking for. If the question is asking you to analyse the significance of a certain aspect of a text, then your first thought...
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3844 Views

Explain two pieces of evidence for genetic explanations for criminal activity

One genetic explanation for criminal activity is candidate genes. Tihoen studied 900 offenders and found abnormalities on two genes associated with violent crime ( MAOA which controls dopamine and serotonin ...
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Answered by Maya L. • Psychology tutor
6315 Views

What is the difference between transcription and translation?

Transcription and translation are both part of protein synthesis; when we use the genetic code to make proteins. These words describe two different stages of the process:Transcription is when you use the gen...
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Answered by Amelia G. • Biology tutor
3300 Views