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Why is graphite softer than diamond if they are made up from the same covalently bonded carbon atoms?

Diamond is an extremely strong and rigid substance because of its molecular structure, which is giant covalent structure. This means that every carbon is covalently bonded to 4 other carbon molecules to form...
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Answered by George W. • Chemistry tutor
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Discuss the macroeconomic impacts of deflation on an economy.

This answer would usually be marked out of 25, therefore should include: Detailed introduction which explores examples of deflation in modern world economies and sets a brief insight as to the content which ...
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Answered by Billy B. • Economics tutor
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What is an unsaturated hydrocarbon?

An unsaturated hydrocarbon is a molecule containing only hydrogen and carbon with a carbon carbon double bond in the molecule.
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Answered by Ella N. • Chemistry tutor
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Differentiate y = x^3 + 2x^2 + 4x + 3

3 x 2 + 2x + 4
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Answered by Billy B. • Maths tutor
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Describe the difference between reflection and refraction (assume the mediums have smooth surfaces)

Reflection: a wave hits a surface, and bounces back into the medium it was originaly in Refraction: a wave enters a medium with a different refractive index to the original medium it was travelling in, at an...
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Answered by Abigail B. • Physics tutor
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