Comments on: O Level Chemistry: Element, Compounds & Mixtures http://www.simplechemconcepts.com/chemistry-question-element-compounds-mixtures-2/ O-Level Chemistry Made Easy Sat, 14 Jan 2012 03:43:17 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: sean http://www.simplechemconcepts.com/chemistry-question-element-compounds-mixtures-2/comment-page-1/#comment-2034 sean Mon, 09 Feb 2009 07:09:21 +0000 http://simplechemconcepts.com/chemistry-question-element-compounds-mixtures-2/#comment-2034 Hi Hamid, Where are you from? and the level/schools you are in? The way to answer your question above and get full marks from the examiners is to DEFINE the two terms directly, follow by stating their chemical/physical properties differences. A Compound is a substance containing 2 or more elements chemically joined together whereas A Mixture consists of 2 or more substances (can be elements or compounds) that are not chemically joined together. Major differences: Pure Compound 1. Fixed % by Mass of each element 2. Has a fixed chemical formulae 3. Cannot be separated by physical means 4. Has a fixed MP and BP It is the opposite (of the above 4 points) for A Mixture. Hope the above discussion is useful to you. Towards Your Academic Success in Chemistry, Sean Master Trainer Author Hi Hamid,

Where are you from? and the level/schools you are in?

The way to answer your question above and get full marks from the examiners is to DEFINE the two terms directly, follow by stating their chemical/physical properties differences.

A Compound is a substance containing 2 or more elements chemically joined together whereas A Mixture consists of 2 or more substances (can be elements or compounds) that are not chemically joined together.

Major differences:

Pure Compound
1. Fixed % by Mass of each element
2. Has a fixed chemical formulae
3. Cannot be separated by physical means
4. Has a fixed MP and BP

It is the opposite (of the above 4 points) for A Mixture.

Hope the above discussion is useful to you.

Towards Your Academic Success in Chemistry,
Sean
Master Trainer
Author

]]> By: Hamid Jam http://www.simplechemconcepts.com/chemistry-question-element-compounds-mixtures-2/comment-page-1/#comment-1944 Hamid Jam Wed, 14 Jan 2009 22:15:12 +0000 http://simplechemconcepts.com/chemistry-question-element-compounds-mixtures-2/#comment-1944 What Is differance between " Compounds & Mixtures " ? What Is differance between ” Compounds & Mixtures ” ?

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