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Why can sodium chloride conduct electricity in the molten state but no in the solid state?

In order to conduct electricity a substance must have charge particles, such as electrons and ions, that are free to move freely through it. In the solid state, ionic compounds such as sodium chloride have t...
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Answered by Olavo M. • Chemistry tutor
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Explain metallic bonding

Metallic bonding occurs due to electrostatic forces of attraction between a lattice of positively charged ions and a "sea" of delocalised electrons. (Draw diagram) These electrostatic forces are ve...
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Answered by Nikhita G. • Chemistry tutor
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What is the best way to evaluate a historical source?

There are a number of ways to evaluate a source, and by using a range of these you can get an excellent idea of whether it is reliable or not. When was it written?- Often public opinion on certain people or ...
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Answered by Sophie D. • History tutor
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What is the best way to approach the analysis of language in poetry?

The best way to start with this kind of analysis, particularly with unseen poetry is to read through the poem carefully and get a general feel for how it makes YOU feel. Does it make you feel happy or sad? W...
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Discuss the significance of loneliness in John Steinbeck's novella 'Of Mice and Men' in relation to the characters.

The theme of loneliness is one which Steinbeck laces throughout his text and attaches to almost every character within it. It can be suggested that the characters of Crooks and Curley's Wife undergo the most...
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Answered by Holly S. • English tutor
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