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Where does the water come from that is given off when making an ester?

One hydrogen (-H) from the alcohol group (-OH) on the alcohol breaks off and joins with the alcohol (-OH) group that breaks off of the carboxylic acid (-COOH). So the -H from alcohol joins the -OH from carbo...
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Answered by Hannah P. • Chemistry tutor
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What is the best way to begin a Medical Personal Statement.

People often get told to find a way to stand out. The problem is, there are 1000s of students all attempting the same thing. This means that anything you think is witty and original, the admissions people wi...
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What are two ways which the body cools itself down when too hot?

Vaso-dilation: blood vessels near to the skin's surface dilate which allows more heat to be lost. This is because more blood can flow through as there is more room in the lumen. Sweating: the hotter we are, ...
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Answered by Hannah P. • Biology tutor
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What is the difference between the primary and secondary immune response?

The Primary Immune Response occurs at first contact with the pathogen. The body takes several days to build up a sufficient amount of antibodies . There is a three-pronged attack in response to primary expos...
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Answered by Daisy G. • Biology tutor
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How to solve a simple simultaneous equation

Solving simultaneous equations: Example Question: Equation 1 ---> 2y – 4x = 2Equation 2 ---> 4y – 6x = 10 Find the unknown quantities, x and y. Solution: Step 1: Firstly check whether there are more th...
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Answered by Nivedah K. • Maths tutor
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