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Define the following. Atom...

Define the following.
Atom

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**Step-by-Step Text Solution:** 1. **Definition of Atom**: An atom is defined as the smallest particle of matter. 2. **Existence**: Atoms may or may not have independent existence. This means that some atoms can exist on their own, while others are found only as part of larger structures. 3. **Role in Chemical Reactions**: Atoms are fundamental in that they take part in chemical reactions. This means that during a chemical reaction, atoms interact with each other to form new substances. ...
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PEARSON IIT JEE FOUNDATION-LANGUAGE OF CHEMISTRY AND CHANGES AROUND US -TEST YOUR CONCEPTS (SHORT ANSWER TYPE QUESTIONS)
  1. Define the following. Atom

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  2. Define the following. Molecule

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  3. Define the following. Symbol

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  4. Define the following. Formula

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  5. Write the formulae for the following. (a) Ozone (b) Phosphorus (c ) ...

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  6. Write the names of the elements with the following symbols.

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  7. Represent the following in terms of their formulae. (a) 5 atoms of s...

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  8. Molecules of some elements and compounds are given below. Identify hyd...

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  9. Write the formulae of different compounds formed among the given eleme...

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  10. Identify the combining power of the elements present in the follow...

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  11. Write the compounds of aluminiium with the following elements. Oxyge...

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  12. Complete the following table.

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  13. Identify the incorrect formulae and correct them. (a) CaO(2) (b) Mg(...

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  14. Calculate the ratio of the number of atoms of the first element to the...

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  15. Classify the following into solids and liquids Glucose, Vinegar Nitri...

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  16. Match the following:

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  17. Match the following:

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  18. Write the symbols for the following elements. (a) Boron (b) Sulphur ...

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  19. Give two examples for the following. (a) Fast changes (b) Desirabl...

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  20. Define the following. Chemical change

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