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What is Fractional Distillation ?

Fractional distillation is the technique to separate different components present in the crude oil on the basis of their boiling points. Crude oil is a mixture of many useful hydrocarbons and it is very impo...
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Answered by Mahima L. Chemistry tutor
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What are Enzymes ?

Enzyme are biological catalyst that speeds up the rate of the reaction without being used up. Enzymes speeds up the rate of chemical reaction by providing an alternative route to the reaction which lowering ...
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Answered by Mahima L. Biology tutor
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How do I answer an exam question about the main differences between classical and modern liberals?

To remember what the main characteristics that differentiate classical and modern liberals, divide their differences according to their attitudes towards the main ideological beliefs that define liberalism. ...
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Answered by Lucinda M. Politics tutor
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Explain the process of suburbanisation and describe its effects (8 marks)

Suburbanisation = is the decentralisation of people, employment, and services from the inner city towards the rural urban fringe. One effect is that the affluent middle class often move to the suburbs where ...
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Answered by Lauran M. Geography tutor
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I don't understand why pressure changes the position of equilibrium in a reaction?

When thinking of pressure I like to think of two boxes joined together with the reactants in one and products in the other. When you make the boxes smaller (increase the pressure) the items in the box with m...
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Answered by Heather W. Chemistry tutor
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