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Melting and Boiling Points for Edexcel GCSE Chemistry







This page covers the following topics:
1. Melting points
2. Boiling points
The melting point of a substance is the temperature at which it changes state from solid to liquid
The boiling point of a substance is the temperature at which a liquid boils and turns to vapour.
1
Melting points are useful when identifying between members of a homologous series. What is a homologous series?
A family of hydrocarbons with similar chemical properties who share the same general formula.
2
Which of the products shown are gases at 1000 degrees C?
Cadmium, ice/water, iodine

3
If we decrease the pressure, what effect does this have on the boiling point of a substance?
It decreases
4
A solid material is heated in a furnace and it is found that it melts at 1055 ºC. Use the table to state what the material is.
actinium

5
What is the name for rocks underground getting so hot that they become a liquid? Hint: this liquid is found at volcanoes.
Magma
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