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In the equation 2Na + 2H2O ---> 2NaOH + H2, is Na oxidised or reduced and why?

Write out the equation and explain the OIL RIG acronym.2Na + 2H₂O ---> 2NaOH + H₂Write the changes in oxidation state of Na. Na goes from an oxidation state of 0 to an oxidation ...

Answered by • Chemistry tutor

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What are the functions of xylem and phloem?

The easiest way to remember the main different between xylem and phloem, when you know one transports glucose and the other water and minerals, is that phloem (pronounced as an 'f') = food, so glucose. An...

Answered by Susannah W. • Biology tutor

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I don’t really understand how the reflex arc works.

Receptors in the skin detect a stimulus (which is a change in environment, for example an increase in temperature when you touch a hot pan). Sensory neurones (a nerve cell which sends electrical impulses ...

Answered by Faiza N. • Biology tutor

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May/June prose 2018- To Kill a Mockingbird:With reference to the ways Lee presents the people of Maycomb, show that some of the people who live in Maycomb are treated unfairly. Who is treated most unfairly? Give reasons for your opinions.

Firstly, due to exam time limits, I would encourage my pupil critically consider the most relevant characters, as this will provide fruitful and diverse content. For example, Atticus Finch, Tom Robinson, ...

Answered by Sarah F. • English tutor

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Describe the basic stages of mitosis.

Cell division, or mitosis, occurs in diploid cells (cells with two copies of every chromosome). During mitosis, a cell will divide and produce two daughter cells which are also diploid. These two daughter...

Answered by Darya S. • Biology tutor

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