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Chemistry
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State what is meant by the term covalent bond

Atoms that share electrons due to the electrostatic attraction between the negatively charged pair of electrons and positively charged nuclei.

Answered by Oliver E. Chemistry tutor
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Why does first ionisation energy decrease as you go down a Group in the Periodic Table?

There are two reasons: increasing atomic size and increasing shielding effect.
Increasing atomic size - As you go down the Group, the atom size becomes larger, therefore the electron that must be rem...

Answered by Chemistry tutor
2817 Views

1a) Describe the difference between strong and weak acids. 1b) HCl is a strong acid. Draw the spin diagram for a chlorine atom.

1a) Strong acids fully dissociate in water, whereas weak acids only partially dissociate in water - thus forming an equilibrium mixture.
1b) See diagram.

Answered by Chemistry tutor
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Explain why compounds of Fe^2+ are coloured in solution. (4 marks)

Fe2+ has an electron configuration of 1s22s22p63s23p63d6. When the ligands of the solution bind to the metal ion the d-orbitals...

Answered by Ben G. Chemistry tutor
3044 Views

What is the general formula for Hydrocarbons?

Hydrocarbons have Hydrogen-Carbon bonds and carbon-carbon bonds. The formula is HnC2n+2This is made clear when diagrams are drawn from different hydrocarbons and you can deduce this ...

Answered by Chemistry tutor
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