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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
- 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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- Father of modern chemistry is……..
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- What is the law of conservation of mass according to chemical equation...
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- Who proposed Law of conservation?
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- State the following law of constant proportions.
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- Define chemical combination and give an example.
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- Give an example for decomposition reaction.
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- What is a thermal decomposition reaction ? Give an example.
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- What is a photochemical reaction? Give one example.
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- Define oxidation and reduction. ? Give one example to each.
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- What is oxidation - reduction reaction or redox reaction ? Give one ex...
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- Why the apples, pears, bananas, etc. change their colour when they cut...
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- Write the chemical equation for tranishing of silver wear (black coati...
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- What is Galvanizing?
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