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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
- Avogadro is appreciable, because he found that one mole of any substan...
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- The great mole concept was introduced by………. And he is appreciable.
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- Washing soda'is the common name of
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- The correct order in the activity to observe law of conservation of ma...
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- Uma: mass is neither created nor destroyed during a chemical reaction ...
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- square : Sodium chloride :: Al2(SO4)3: Aluminium sulphate
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- David: By transfer of electrons atoms- can attain octet Dravid: By s...
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- A given chemical substance always contains the same elements combined ...
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- A neutral metal atom becomes dipositive ion by loosing two electrons. ...
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- We can test the law of conservation of mass by the reaction between ba...
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- Based on the above flow chart, generalised statement is P. In any subs...
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- In the above flow chart, the number 6.022xx10^23 is
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- The molecular mass of a substances is the sum of the atomic masses of ...
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- Some symbols of elements are based on their English names, Some other ...
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- How many molecules are there in 18 grams of water?
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- IF valency of MG is '+2' and valency of Sulphate (SO4) is '-2', then t...
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- Homogeneous molecules from the following
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- The common name of hydrogen monoxide is
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- Valencies of nitrogen and hydrogen and 3 and 1 respectively. The form...
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- P: the atmoicity of Oxygen is 3 Q: The formula of ozone is O2
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