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Draw a dot and cross diagram to show HCl structure

I would first get the student to find the elements on the Periodic Table, and work out how many valence electrons each atom had. Then I would get them to draw the structures of hydrogen and chlorine using th...
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Answered by Sophie N. • Chemistry tutor
16239 Views

Paul travels from Rye to Eston at an average speed of 90 km/h. He travels for T hours. Mary makes the same journey at an average speed of 70 km/h. She travels for 1 hour longer than Paul. Work out the value of T

As distance is equal to speed multiplied by time, the distance Paul has traveled is 90 multiplied by T, or 90T. As Mary is making the same journey, she travels the same distance. The distance she travels is ...
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Answered by Guy L. • Maths tutor
13795 Views

How does the ablative case work?

The easiest way to explain it is that it is the 'adverbial' case. This means that it will always tell us something more about how an action (described by the verb) took place. One of the simplest examples to...
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Answered by Stephen J. • Latin tutor
5733 Views

How many main cases are there in Russian and what are their basic function?

You have six cases in Russian: the nominative, accusative, genitive, instrumental, dative and prepositional. Remember they are all used at varying popularities, so the dative case is not nearly going to be u...
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Answered by Bronte W. • Russian tutor
7043 Views

When should I use the subjonctif?

The subjunctive is a tricky part of the french language, one that often confuses students. There are several cases in which it is used: - when you express a desire, a will, an order (e.g. Je veux que tu...)....
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Answered by Susanne K. • French tutor
5078 Views