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What is the difference between Ionic and Covalent Bonding

Ionic Ionic bonding happens between metals and non-metals. The electrons in ionic bonding are given or taken. For example, Sodium + Chlorine --> Sodium Chloride. (Na + Cl --> NaCl ) Sodium only has one...
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Answered by Ananya T. • Chemistry tutor
2827 Views

Describe how Giraffes evolved long necks (3)

Due to natural variation due to mutations in their DNA, some giraffes in the population had longer necks. These longer necks enabled them to reach leaves higher up on the trees, which secured them a good sou...
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Answered by Roshan S. • Biology tutor
3881 Views

Compare and contrast the ways in which Bronte and McEwan present the journey from childhood to adulthood through their protagonists in Jane Eyre and Atonement.

Both writers use the openings of their narratives to foreshadow the struggle that their protagonist will have to endure during their journey from youth to maturity. Bronte’s narrative decision to use symboli...
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8210 Views

How should I pick a topic/question for my EPQ?

First of all, find a topic that interests you. It may be related to a subject that you are studying at A-level but it doesn't have to be. Then do some research on that topic. If it still interests you, and y...
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5953 Views

Solve the following simultaneous equations: x^2 + 2y = 9, and y = x + 3.

Label the two equations as the following: x 2 + 2y = 9 y = x + 3 Equation 2 can be substituted into equation 1, giving: x 2 + 2( x + 3 ) = 9Expanding the brackets and subtracting 9 from both sides means equa...
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Answered by Ximena B. • Maths tutor
4606 Views