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Chemistry
GCSE

What is an ionic bond?

An ionic bond is the electrostatic force of attraction between two or more oppositely charged ions, formed by the transfer of electrons...

Answered by Gunchit S. Chemistry tutor
1731 Views

Describe what happens when two atoms of potassium react with one atom of sulfur giving your answer in terms of electrons.

Electrons are transferred from potassium to sulfur. Two potassium atoms each lose one electron forming K+ / 1+ ions. Sulfur atoms gain 2 electrons forming S2- / 2- ions.

Answered by Sabrine H. Chemistry tutor
3888 Views

Explain, with reference to the outer electrons, the type of bonding in sodium chloride and whether it would be a good conductor of electricity.

Because sodium chloride is a compound that consists of a metal and a non-metal, we know that the bonding present in sodium chloride is ionic. This means that electrons are given and taken in order for the...

Answered by Kym A. Chemistry tutor
4333 Views

Define the term "homologous series" and give an example

A homologous series is a series of molecules with the same functional group but different chain lengths. An example could be alkenes where the functional group is the C=C double bond.

Answered by Anisha B. Chemistry tutor
5199 Views

What is an acid?

An acid is a substance which releases hydrogen ions (protons) when added to water. pH values of less than 7 are considered acidic, with 1 indicating it is a strong acid.

Answered by Ellie W. Chemistry tutor
2597 Views

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