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Chemistry
GCSE

Explain in terms of structure why giant ionic lattices have high melting and boiling points. [4]

Giant ionic lattices are regular structures, held together by ionic bonds. These ionic bonds are strong electrostatic forces of attraction between oppositely charged ions, acting in all directions. Energy...

Answered by Ruth N. Chemistry tutor
15898 Views

What processes occur throughout the limestone cycle? (3 marks)

The naturally occurring compound in limestone is calcium carbonate (CaCO3). When heated, the CaCO3 thermally decomposes (is broken down by the heat in an endothermic process) to prod...

Answered by Mitchell S. Chemistry tutor
6338 Views

Ethane-1,2-diol can be dissolved in water to act as an anti-freeze in car radiators. Explain why ethane-1,2-diol is very soluble in water. (2)

Has O–H (bonds)OR has hydroxyl (groups) OR has hydroxy (groups)
Forms hydrogen bonds with water (molecules)

Answered by Precious Q. Chemistry tutor
9727 Views

How have ideas about atomic structure changed through history?

The Greeks were the first to think of atoms, Democritus defined an atom as the smallest indivisible piece of matter using the idea that if you continue to cut a material in half, you must eventually reach...

Answered by Scott W. Chemistry tutor
2341 Views

What are the different types of bonding?

There are 3 main types of bonding: covalent, ionic and metallic. Covalent bonding occurs when there are a shared pair of electrons between two atoms. Ionic bonding is the electrostatic attraction between ...

Answered by Rachel M. Chemistry tutor
4946 Views

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