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Explain why Xenon had a lower first ionisation enthalpy than Neon. (3 marks)

Xenon is further down Group 8 of the Periodic Table than Neon, hence has its outermost electrons in higher energy shells further away from the nucleus. Therefore, there are more full intermediate energy leve...
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Answered by Alex M. Chemistry tutor
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With examples, outline the three major tectonic boundaries and their associated features

There are three types of plate boundaries: convergent, divergent and transform. (Next to each explanation, include a simple diagram, making sure to label each key component.) Convergent Convergent boundaries...
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Answered by Caitlin T. Geography tutor
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How would you find out whether a reaction is feasible?

For a reaction to be feasible at a given temperature, it must happen spontaneously, which means no extra energy needs to be put in for the reaction to occur. To find out whether a reaction is feasible, you c...
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Answered by Sarah G. Chemistry tutor
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Describe the 3 types of plate boundaries.

Destructive/convergent - this is when two plates are moving towards each other. When it is a continental plate meeting with an oceanic plate, the oceanic plate is the denser of the two and will be forced dow...
EW
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How does Depuis work?

It affects the tense of the sentence. The constructions are different in French and English. In English, for example, we might say something like: 'I have been playing football for 5 years'. In French, we us...
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Answered by Guy H. French tutor
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