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Answer eight of the following items (a), (b), (c), etc - Leaving Cert Chemistry - Question 4 - 2013

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Answer eight of the following items (a), (b), (c), etc. (a) In which of the three states of matter do the particles vibrate about fixed positions? (b) In the diagr... show full transcript

Worked Solution & Example Answer:Answer eight of the following items (a), (b), (c), etc - Leaving Cert Chemistry - Question 4 - 2013

Step 1

In which of the three states of matter do the particles vibrate about fixed positions?

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Answer

The particles vibrate about fixed positions in the solid state of matter.

Step 2

What term is used for half this distance?

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Answer

The term used for half this distance is the atomic radius or covalent radius.

Step 3

What is an endothermic reaction?

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Answer

An endothermic reaction is a reaction in which heat (energy) is gained (taken in) from the surroundings.

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