Students learn how to write and balance equations originally stated in words. Word Equations and Balancing: The law of conservation of mass is used to provide standard rules for writing and balancing ...
The processes like crystallisation, boiling, vaporisation, burning of colour, melting point, hardness etc, are called physical changes. These are reversible in nature. The processes like ...
UP Board Class 12 th Chemistry paper 1 is scheduled to be held on February 20, 2018, and Paper 2 will be held on February 22, 2018. Students find chemistry a difficult subject because of the chemical ...
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