CBSE Class 9: Laws of Chemical Combination Videos | Atoms and Molecules - Exam Decoded - 2
Atoms and Molecules - Exam Decoded - 2
This video contains questions based on the laws of chemical combination, symbols, valencies and writing chemical formulae.
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Atom
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Atoms and Molecules - Exam Decoded - 1
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Laws of Chemical Combination
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Dalton's Atomic Theory
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- what is chemical
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in a reaction 4.0g of sodium carbonate were reacted with 10g of hydrochloric acid. The product was a mixture of 2.5g of carbon dioxide and 11.5g of sodium chloride.
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- What are the forth drawback of Delton'theory ?
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- In a reaction 5.3gm of sodium carbonate reacted with 6gm of ethanoic acid , the products were 2.2gm of carbon dioxide, 0.9gm of water and 8.2 gm of sodium ethanoic. Show that , these observations are in agreement with law of conservation of mass.
