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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
- 100g. of mercuric oxide decomposes to give 92.6g. of mercury and 7.4g....
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- Discuss with your friends if the carbon dioxide that you breathe out a...
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- Which postulate of Dalton’s theory is the result of the law of conserv...
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- Which postulate of Dalton’s theory can explain the law of constant pro...
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- Where does the matter charcoal go?
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- Wet clothes dry after sometime – where does the water go? What happens...
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- What happens to sulphur on burning it in air?
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- Do you think that a chemical reaction has taken place in the flask? Gi...
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- What difference do you observe in percentage of copper, carbon and oxy...
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- How do we write the symbols for calcium, chlorine, chromium ?
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- Would you be able to recognise the elements of the table -2, have symb...
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- Why do some elements be monoatomic?
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- Why do some elements form diatomic or triatomic molecules? Why do elem...
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- What is valency?
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- Can you write the formula of carbon dioxide and carbon monoxide? Try ...
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- How many molecules are there in 18 grams of water? How many atoms are ...
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- Did you notice the colour coating on silver and copper articles?
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- How did the element hydrogen get its name?
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- What is an atom?
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- What is an Avagadro number? What is its value?
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