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Compare chemical properties and reactivities of alkali and alkaline earth metals.

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Compare the physical properties of metals and nonmetals.

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Elaborate the properties of salts?

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What is the trend of shielding effect in groups? Give reasons

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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Give the concept of oxidation and reduction in terms of change of oxidation number is a chemical reaction.

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Why the density of gases is lesser than of liquids?

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What type of attractive forces exist between HCl molecules?

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Write down uses of calcium

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Design a model to explain the green house effect.

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Write the trend of elector negativity in periods and groups?

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Define unsaturated solution?

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investigate the means used by scientists and engineers to overcome the problem of expansion and contraction in everyday life.

asked Nov 24, 2018 in Science by danish (1.0m points)

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What is meant by periodic function?

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Is the Boyle's law applicable to liquid?

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What is meant by diabetes mellitus in human?

asked Nov 23, 2018 in Science by danish (1.0m points)

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How you make relationship of solution to different products in the community? Explain briefly

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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What is the difference between density and rigidity?

asked Nov 22, 2018 in Chemistry by danish (1.0m points)

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Describe the achievment of Dr.Mubarak Mand

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What is the trend of shielding effect in periods? Give reasons.

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What is shielding effect?

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