CBSE Class 9 - Laws of Chemical Combination Videos
Atoms and Molecules - Exam Decoded - 2
This video contains questions based on the laws of chemical combination, symbols, valencies and writing chemical formulae.
- What is kinetic energy?
- what is chemical
- What is kinetic energy
- What is inter molecular force?
- What is meaning of kinetic energy
-
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.
- How to identify which radical it is? Any tricks to find?
- What are the forth drawback of Delton'theory ?
- What does 20% w/v sugar syrup means what.
- 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.
