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Ice convert((heat))to water conve...

`Ice convert((heat))to water convert((heat)) to water vapour`. What type of change is it? Is it reversible? If so, how?

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NCERT TELUGU-CHANGS AROUND US-EXERCISE
  1. Explain what are physical and chemical changes: Give examples.

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  2. How do you make crystallization of urea?

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  3. Ice convert((heat))to water convert((heat)) to water vapour. W...

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  4. What is a chemical change ? What are its properties ?

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  5. What is a physical change ? What are its properties?

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  6. What is rust and rusting? Why does iron rust ? What type of a change i...

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  7. What is crystallization ? How do you make crystallization of copper su...

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  8. Explain the following chemical changes : a) A piece of magnesium wire ...

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  9. Explain the following chemical changes : An iron nail is dropped in a ...

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  10. Explain the following chemical changes : Baking soda is added to vineg...

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  11. Write the reactions and give reasons: Carbondioxide gas in bubbled thr...

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  12. What are the differences between physical and chemical changes ?

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  13. Draw a diagram of the activity you perform to observe the reaction bet...

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  14. Draw a diagram of the activity you perfom to observe changes in water ...

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  15. Digestion of food is achange:

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  16. Fill in the blanks in the following statements. The chemical name of v...

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  17. Iron, in the presence of oxygen and moisture gets rusted after long ti...

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  18. The process of depositing a layer of zinc on iron is called:

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  19. A very fast reaction:

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  20. The rust on an iron article is chemically known as:

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