Top answers

What are isotopes and how do they differ from each other?

An isotope is a different form of the same element. They differ from each other by the number of neutrons, however they have the same number of protons and electrons. This results in a different atomic mass....
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Answered by Hayden T. • Chemistry tutor
41576 Views

Calculate the percentage, by mass, of carbon in sodium hydrogencarbonate (NaHCO3)

When faced with this style of problem there are steps to correctly answer the quesion: Step 1 - identify the atomic mass of carbon Step 2 - calculate the atomic mass of the compound Step 3 - work out the per...
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Answered by Hayden T. • Chemistry tutor
43858 Views

How can we remember the difference between differentiation and integration?

Integration is the inverse of differentiation. I.e. for differentiation of linear expressions we multiply the coeifficient with the power of the unknown and then subract 1 from the power. Integration is the ...
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Answered by Madeha N. • Maths tutor
5372 Views

How do you tackle a Latin translation?

Top tips for tackling a translation: Before you begin, read through twice to try and get the gist of the text- ie, the characters, the plot etc Always carefully read the extract in English at the top- as thi...
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Answered by Katie O. • Latin tutor
9938 Views

Why is the human circulation em called a double circulation system?

In the double circulation system there are two routes that the blood can take: 1. Through the lungs 2. To the rest of the body The blood starting in the heart has no oxygen in it. It flows from the heart and...
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Answered by Elizabeth L. • Biology tutor
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