Top answers

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...
EK
Answered by Elisabeth K. • French tutor
4421 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
7974 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.
DT
Answered by Devina T. • Chemistry tutor
5083 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
4054 Views

What is osmosis?

This involves water molecules which are transported from an area of high concentration to a low concentration. This transportation is termed diffusion. This would occur through a partially permeable membrane.
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Answered by Devina T. • Biology tutor
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