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How do I construct a negative sentence in the present tense?

Negating sentences in French is quite simple – I’m sure you’ll get the hang of it very quickly! There’s a basic formula which applies to most cases: ne + conjugated verb + pas. Let’s look at some examples: J...
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Answered by Elisabeth K. • French tutor
4365 Views

Describe and compare three features of the structure and bonding in the three allotropes of carbon: diamond, graphite and C60 fullerene.

I will explain to students that even though they only need to use three features, it is important to learn and understand all five features to excel in the exam. This way, during the exam, the students may p...
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Answered by Amit A. • Chemistry tutor
41304 Views

Solve the following simultaneous equations for x and y : 2x - y = 12; x + 3y = 20

When solving equations such as these we have two variables which represent two numbers. In order to solve them we want to isolate and remove one of the variables so we are only left with one, we do this by m...
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Answered by Alexander S. • Maths tutor
7904 Views

What is the Avogadro constant and what are moles?

The Avogrados constant the number of atoms in a mole. This is 6.02 x10^23. The number of moles are calculated through diving the mass (g) by the relative molecular mass of an element.
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Answered by Devina T. • Chemistry tutor
5007 Views

How do you add fractions? And how do you multiply fractions?

Addition of fractions involve the finding of a common denominator. This would aid the addition. The multiplication of fractions can be made much easier through finding if they can be made smaller through bas...
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Answered by Devina T. • Maths tutor
4005 Views