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What is the definition of 'first ionisation energy'?

The first ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms from its valence shell.
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Answered by Shreyas B. • Chemistry tutor
21728 Views

Solve this quadratic equation by factorising: x^2-x-6=0

In order to solve this equation (x 2 -x-6=0) using the factorising method, you should first find the two numbers that mutiply to -6 and add to -1. The two numbers that do this are 2 and -3. Therefore, (x+2) ...
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Answered by Arrthe N. • Maths tutor
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Hairdresser A charges £66 for a haircut and has an offer of 1/3rd off. Hairdresser B charges £70 for a haircut and has an offer of 20% off. Which hairdresser is cheaper?

Hairdresser A as they charge £44 wheras Hairdresser B charges £56
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Answered by Ellen N. • Maths tutor
3285 Views

Explore the theme of loneliness in 'Of Mice and Men' in relation to George, Lennie, Candy and his dog.

The theme of loneliness runs throughout the novel, with each character demonstrating loneliness to varying levels. John Steinbeck has illustrated loneliness through the relationships between the main charact...
RK
11073 Views

What are the main differences between civil law and criminal law?

Different standards of proof: in civil law, the claimant needs to produce evidence beyond the balance of probabilities; whereas in criminal law the defendant is innocent, unless the crime is proven beyond re...
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Answered by Karolina M. • Law tutor
12843 Views