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Chemistry
A Level

If we burn 3 moles of carbon in air (as per the equation), what mass (in grams) of carbon dioxide will be produced? What volume will this gas occupy at standard temperature and pressure?

So firstly, we assume that the oxygen is in excess (i.e. the amount of oxygen reacting won't limit the amount of carbon that can react), so we know that exactly 3 moles of carbon will be burnt. Then, from...

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Answered by Sam H. Chemistry tutor
2872 Views

How do you know where the bonds link to form a new molecule?

Bonds in a molecule BREAK when that molecule is reacted with another molecule. They then MAKE another bond.This bond can be between molecules or can just be part of the new molecule.There are many types o...

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Answered by Nerea I. Chemistry tutor
1678 Views

Why does the atomic radius decrease as you move along a period.

As you move along the period the proton number increases and the electrons are added to the same shell meaning no extra electron shielding occurs. Therefore the nuclear attraction to the outer most elect...

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Answered by Taylor M. Chemistry tutor
2304 Views

How do London Forces/Van der Waal's forces arise?

In the outer shells of atoms, electrons move around uncontrollably and spontaneously, these leads to there being an uneven distribution of electrons in this region. This uneven distribution induces a dipo...

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Answered by Raisha A. Chemistry tutor
5672 Views

What is hybridisation and how can it be used to explain the shapes of molecules?

Before we start on exploring the implications of hybridisation, we should start with a definition. Hybridisation can be thought of as the mixing atomic orbitals into new hybrid orbitals suitable that can ...

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Answered by Rebecca M. Chemistry tutor
4549 Views

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