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    more doubts in the CHEM syllabus

    the syllabus is sooo CONFUSING!!! :x i don't get what these mean, and even if i do, i don't understand them....... 1) Describe in outline the usefulness of chromatography in separating and identifying the product of hydrolysis of carbohydrates and proteins. 2) Describe the reactivity series...
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    WHO CAN SOLVE THIS MOLE question???

    Does anybody know how to answer this? Sodium carbonate crystals have the formula Na2CO3 n H20 A 27.823g sample of crystals was dissolved in water. 25.0 cm3 of this solution was reacted with 48.8 cm3 of 0.1 mol/dm3 hydrochloric acid. Find n in the formula of crystals.
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    MAJOR DOUBT IN CHEM

    1) Give two ways by which carbon dioxide is removed naturally fro the atmosphere. Photosynthesis and..........? :( 2) This was in the syllabus but i didn't understand it. Could somebody explain? "Describe the differences in volatility, solubility and electrical conductivity betweem ionic and...
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    Dr. Roger Norris - EXAMINERS' TIPS

    Well, SINCE everyone is being NICE, i thought I'd post this........ Read the question correctly. For example, if the question says ‘give two observations apart from temperature change’, don’t include temperature change in your answer • Check for contradictions within your answer. For example...
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    doubt in the chem Syllabus??

    The Syllabus says: "Describe the change from metallic to no-metallic character across a period." What does this mean???? And can anyone help me understand it???? :) PLus: How is chromatography used to purify substances???(by separating impurities) An example??? The procedure??? Aluminium...
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    CHEMISTRY DOUBT!!!

    I don't understand the concept behind ionic bonds............. Please explain how ionic bonds FORM AND What they really are.....
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