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Is law of conservation of mass always va...

Is law of conservation of mass always valid ?

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No, its is not valid for nuclear reactions. In these reactions, a certain amount of mass gets converted into energy known as nuclear energy. Therefore, mass is not conserved and it does not remain constant.
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DINESH PUBLICATION-MOLE CONCEPT-Concept Based Question
  1. Hydrogen catches fire easily and oxygen helps in combusion. Why is wat...

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  2. Statements gives below pertain either to an element or mixture or comp...

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  3. What is an atom according to Dalton's Atomic theory ?

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  4. What is the effect of temperature on molarity of a solution?

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  5. What is the significant of N/10 NaOH solution ?

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  6. Does HCl solution have same value of molarity and normality ?

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  7. In the combustion of methane, why is methane regarded s the limiting r...

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  8. 32 g of sulphur will react with 32 g of oxygen, even if more than 32 g...

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  9. Is law of conservation of mass always valid ?

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  10. Give an example of a molecule in which the ratio of the molecular form...

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  11. What are the SI unit of molarity ?

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  12. How are 0.5 m of NaOH different from 0.5 M of NaOH ?

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  13. What is the difference between 0.05 g and 5.0 xx 10^(-3)g ?

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  14. Are the molar volumes of CO(2) and SO(2) different ?

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  15. It the atomic masses of C and S are 12 and 32 respectively, then atom ...

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  16. How many oxygen are present in 96 g of ozone ?

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  17. Which law of chemical combination is not explained by the Dalton's ato...

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  18. Do two moles of N(3) and two moles N represent the same quantity ?

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  19. Calculate molecular mass of glucose

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  20. What is the difference between 0.006 g and 6.00 xx 10^(-3)g ?

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