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What reaction occurs when benzene is mixed with equal amounts of sulphuric and nitric acid?

Intro: This is an electrophilic substitution reaction (nitration)Nitric acid and sulphuric acid are used to create the electrophile (NO 2 + )The electrophile then substitutes itself with a H atom on the benz...
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Answered by Simone S. • Chemistry tutor
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Can we prove the existence of God?

The question of proving God's existence is central to debates surrounding a key area of the Theology syllabus - Philosophy of Religion in particular. To ‘prove’ that something exists would normally entail an...
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How does the human body's respiratory system enable the rapid exchange of gases between oxygen and CO2?

The blood capillaries surrounding the alveoli of the lungs provide them with a rich supply of flowing blood. This means that the oxygen depleted blood returning from the body picks up oxygen from inside the ...
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Answered by Shaakirah S. • Biology tutor
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How should I structure my essays?

I always prioritise having a really bulletproof, strong structure - especially in the time constraints of a exam. I like to come up with my subtitles before I start writing, both to make sure I cover all the...
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Answered by Stephen C. • History tutor
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What is the difference between voltage and current?

The voltage (or potential difference ) between two points is the cost in energy to move a unit of positive charge from the point of lower potential to the point of higher potential. Current is the rate of fl...
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Answered by Daniel W. • Physics tutor
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