A blog covering and explaining the Edexcel IGCSE Chemistry specification for the 2016 summer exams. If you are doing just double science, you do not need to learn the stuff for paper two, if you are doing triple you will need to learn all (GOOD LUCK!) I have separated the papers to make files easier to find. Hope it helps :)
Sunday, 27 March 2016
2.11 understand the difference between hydrogen chlorine gas and hydrochloric acid
When hydrogen chloride gas (gas at room temperature) is dissolved in water the hydrogen chloride molecules split (into H+ ions and Cl- ions). This process is known as dissociation. The solution that is formed is hydrochloric acid, which is acidic as it contains H+ ions.
Labels:
group 7 elements,
Paper 1,
section 2
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