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a) How can an element be classified as a transition metal, considering only electronic arrangement? (1 mark) b) In terms of electrons, why is aqueous copper(II) sulphate solution red? (3 marks) c) EDTA is a bidentate ligand. What is a bidentate ligand?(2)

a) Partially filled/incomplete d shell.
b) Light is absorbed by an electron, exciting it and is promoted to a higher energy d orbital. The colour seen is the complimentary colour of that absorbed (in...

JO
Answered by James O. Chemistry tutor
1892 Views

25cm^3 of 0.1M NaOH is reacted with 0.01M HCl until the equivalence point is reached. What volume of HCl was required to be added?

0.025 dm^3 x 0.1 mol dm^-3 = 0.0025 molsince mols must be equal:mols of HCl = 0.0025/0.01 =250cm^3To get to the answer I would first check the student was first able to identify the key words and numbers ...

GW
2388 Views

How do I close-read a prose passage in German?

Here are the steps you need to follow when you are writing about a prose passage in German: 1) When close-reading the passage the first time: Get a first impression of the text a...

LS
1743 Views

What is the difference between ser and estar?

English only has one verb 'to be', but Spanish has two: 'ser' and 'estar'. This can be confusing, but it is important to know the difference as they have different uses and can change the meaning of the w...

HF
Answered by Hannah F. Spanish tutor
1713 Views

What is the impact of a price ceiling on a market equilibrium?

Define a price ceiling as a maximum price that a seller is allowed to charge for a good or service. Examples include rent controls and medication.Assume that we are currently at an equilibrium where p=p* ...

BS
Answered by Balram S. Economics tutor
2097 Views

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