Science, asked by YEAR2020, 9 months ago

summary of ch-3 Chemical Substance and Procesess dav class 7

Answers

Answered by sanjeevgarg090990

3

Explanation:

in Chapter chemical substances and processes we read about elements, compound, atoms, molecules , chemical symbols, balancing equation, how to write chemical formulas , various types of reactions such as combination reaction , decomposition reaction, displacement reaction and neutralisation reaction and we also read about ions

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