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How can Diamond and Graphite both be made of carbon but be so different?

Graphite and Diamond are different because they have different structures. Both have Giant Covalent Structures, resulting in very high melting temperatures. However each carbon atom in Diamond has 4 covalent...
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How do I answer a six mark question?

So, six mark questions are notorious for being anxiety inducing but they aren't as scary as they seem. What we as a pair have to do is simply sit down together and go through all the possible six mark questi...
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Answered by Samriddhi S. • Science tutor
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A* grade question: ((2x+3)/(x-4))-((2x-8)/(2x+1))=1 solve for X

Multiply whole equation by x-4 and then 2x+1 (would do this one step at a time but must conserve space here): (2x+3)(2x+1)-(2x-8)(x-4)=(x-4)(2x+1) Expand brackets: (4x^2+8x+3)-(2x^2-16x+32)= 2x^2-7x-4 Do the...
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Answered by Becky L. • Maths tutor
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Describe 3 ways in which the lungs are adapted to allow efficient gas exchange

Large surface area -Cell wall of alveoli is one cell thick -Good Blood supply
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Answered by Roshni V. • Biology tutor
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List 5 processes for which mammals need energy

To maintain a constant body temperature -To aid growth To allow muscle contraction For active transport -For protein synthesis
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Answered by Roshni V. • Biology tutor
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