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A Level

What is the position of chemical equilibrium and how can it change? (A-Level/high GCSE)

A dynamic chemical equilibrium refers to a reversible chemical reaction, where the forward and reverse reactions are happening at the same rate. This results in the concentrations of reactant and product ...

JC
Answered by James C. Chemistry tutor
32335 Views

Why do nerve impulses travel faster in myelinated neurons?

The myelin sheath is a fatty layer made up of the hugely expanded plasma membrane of schwann cells which surround the axon of neurons. The axon is unprotected where the sheath of one cell meets the next a...

DP
Answered by Dolcie P. Biology tutor
5077 Views

Rutherford’s alpha particle scattering experiments gave what evidence about an atom?

Before we can look at the evidence we need to look at the observations from the experiment. During the session we will go through the experiment and then the observations to deduce the atom theory - and h...

AS
Answered by Anmol S. Physics tutor
2248 Views

What is a test for iron(III) compounds?

Using thiocyanate ions to give a red complex. During the session I will go through the reaction mechanism and evaluation of soluble / insoluble products.

AS
Answered by Anmol S. Chemistry tutor
4094 Views

How do I integrate 4x*exp(x^2 - 1) with respect to x?

During the session I would go step by step through the integration by substitution.

AS
Answered by Anmol S. Maths tutor
3505 Views

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