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What is the reaction between Zinc and Sulphuric Acid?

When a metal reacts with an acid it forms a salt and hydrogen gas.The salt will be a sulphate due to the acid being H₂SO₄So, Zn + H₂SO

Answered by Charles W. • Chemistry tutor

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Explain the trend in first ionisation energy as you go across Period 3

Overall, the first ionisation energies will increase. This is because as you go along the period, the atomic number increases and this causes a stronger electrostatic attraction between the outer electron...

Answered by Charles W. • Chemistry tutor

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Sort the following compounds in order of increasing boiling point and explain your reasoning: hydrogen, hydrogen fluoride and hydrogen bromide

Order: hydrogen fluoride > hydrogen bromide > hydrogen.Hydrogen fluoride contains a hydrogen atom bonded directly to a fluorine atom. The fluorine is highly electronegative and so pulls the bonding ...

Answered by Alex M. • Chemistry tutor

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What is an equilibrium?

Have you ever tried to run the wrong way down an escalator? then you have experienced a dynamic equilibrium.You are moving up, it is moving down and yet, your actual position isn't changing. In a reaction...

Answered by Jemma S. • Chemistry tutor

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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...

Answered by James O. • Chemistry tutor

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