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Explain the difference in reactivity of the halogens as group 7 is descended.

The halogens become less reactive as the group is descended. The halogens react by accepting an electron into its outer shell from another atom. As the halogens are descended, the outer electron shell become...
TA
Answered by Tomos A. • Chemistry tutor
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What points should I include when outlining the behavioural approach to explaining phobias?

The layout of this question is all AO1, it's an explanation, not an evaluation. Therefore you should only outline what the theory shows. For this question you need to explain both classical and operant condi...
MY
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Describe the process used by a binary search algorithm, and explain why binary search would not be appropriate for the list [3,2,5,7,9]

A binary search starts at the middle of the list and compares this item with the search term, if the item matches the search term, then the search is complete.If the item is not the search term, it is compar...
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Answered by William H. • Computing tutor
1693 Views

What is genetic drift?

Genetic drift is any change to the gene pool of a population (the total set of genes they have as a group) that is NOT a caused by selection. They can be thought of as 'random' changes, unlike natural select...
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Answered by Michelle H. • Biology tutor
4331 Views

In an isolated container contains 1kg of ice at 0 oC. 1kg of warm water (323K) is poured into the container. How much ice (in kgs) remains after the system returns to thermal equilibrium? (by the end of the process?)

As this is an isolated container, we know that the heat transfer with the environment is zero. Since the specific latent heat of ice is a magnitude bigger than the specific heat of water, the container will ...
AM
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