Answers

2016-07-19T17:07:58+08:00
2016-07-19T19:17:05+08:00
There are many types of compound, like carbon dioxide (carbon and oxygen), common salt (sodium, chlorine), marble ( calcium, carbon, oxygen), copper (II) sulphate (copper, sulphur, oxygen) and hydrogen chloride (chlorine and hydrogen). Compound is made up of two or more elements. Examples include water.


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