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What is meant by terms 'saturated' and 'unsaturated' when applied to alkanes and alkenes? Describe a chemical test to distinguish between the liquids hexane and hexene.

Saturated – contains single bonds only.Unsaturated – contains one or more carbon-carbon double bonds.Shake each with bromine water. Hexene will decolorise bromine water, which will go from orange to colourle...
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Answered by Kamile S. • Chemistry tutor
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What are geometrical isomers? Explain, structurally, why geometrical isomers exist.

Molecules differing in the relative bond positions of two groups about carbon-carbon double bonds. Free rotation is not possible about a carbon-carbon double bond. Thus, groups attached to the double-bonded ...
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Answered by Kamile S. • Chemistry tutor
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The Nucleophilic substitution mechanism: i. give the mechanism for the reaction between bromoethane and sodium hydroxide solution; ii. explain why the reaction mechanism is called nucleophilic substitution mechanism.

ii. The nucleophile donates a lone pair of electrons to the electrophilic carbon atom in the halogenoalkene. The bromine atom is substituted by the hydroxide ion. The mechanism is accompanied by inversion of...
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Answered by Kamile S. • Chemistry tutor
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Students conducted a Young's experiment. Explain how pattern seen on the screen is created.

Light firstly goes through a single slit, this makes light coherent and monochromatic. Then, light diffracts on the double slit, undergoes superposition and constructively and destructively interferes creati...
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Answered by Ignacy O. • Physics tutor
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Explain the difference between the direction of the conventional current and the direction of electron flow.

The direction of the conventional current is from positive terminal to negative terminal. The direction of electron flow is from negative terminal to positive terminal. This is because electrons are a negati...
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Answered by Ignacy O. • Physics tutor
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