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Chemistry
GCSE

What does OILRIG stand for and what is the significance?

Oxidation Is Loss Reduction Is Gain = OILRIG

This is a helpful acronym to describe the term given to a loss or gain of electrons. If atom looses or gains an elect...

Answered by Alice C. Chemistry tutor
67701 Views

Why is the Haber Process run at 450 °C instead of room temperature?

the forward reaction of the harbour process is exothermic, it gives out heat. so increasing temperature  will shift the equilibrium and decrease the yeild, however inc...

Answered by Tom F. Chemistry tutor
8916 Views

What is empirical formula and how is it worked out?

Empirical formula is  the simplest ratio of elements in a formula. chemists use it to make big molecules easier to work with when doing calculations.

An example of a working out an empiri...

Answered by Tom F. Chemistry tutor
2098 Views

What is the difference between oxidation and reduction?

In chemistry if a substance is oxidised it loses electrons in a reaction.

If a substance is reduced it gains electrons in a reaction.

A reaction that has both oxidation and ...

Answered by Thomas C. Chemistry tutor
27989 Views

How do reversible reactions reach an equilibrium?

Reversible reactions are reactions where the products are able to react themselves into the reactants. At the beginning of the reaction, there will be more reactants than products. But as the reaction goe...

Answered by Nandini M. Chemistry tutor
19368 Views

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