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Explain how carbon monoxide is produced when petrol is burned in car engines. (2 marks)

Car petrol is usually some form of alkane, which has the general formula C n H 2n+2 . Let us assume we are using Butane (C 4 H 10 ). The desired chemical reaction for the complete combustion of butane is 2C ...
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Answered by Luc B. • Chemistry tutor
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Metals have high melting points. Explain, in terms of their structure and bonding, why metals have high melting points

How I would explain this to a student:"It is important to first know what the total marks for each answer is. 2 marks means the examiner requires 2 points. The question also states explain in terms of s...
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Answered by Esther A. • Chemistry tutor
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Explain what an ionic bond is and how the charges and radii can affect the melting and boiling points of the ionic compounds

An ionic bond is the electrostatic attraction between two oppositely charged ions to form an ionic compound. The greater the charge of an ion the stronger the ionic bond as the attraction between the positiv...
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Answered by Charles H. • Chemistry tutor
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What is oxidation and reduction?

Reactions can be explained in terms of loss and gain of electrons. Oxidation is Loss of electrons and Reduction is gain of electrons. When electrons are lost oxidation number increases, whereas reduction lea...
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Answered by Charles H. • Chemistry tutor
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Explain what metallic bonding is.

There is a structure of positively charged metal ions arranged in a regular pattern. Between these metal ions lie a sea of delocalised electrons which have been delocalised from the metal atoms to form the m...
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Answered by Louisa B. • Chemistry tutor
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