I want to teach science to the students of class ninth and tenth.

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Because in decomposition reaction ,one substance decomposes or breaks into two molecules...while in combination reaction, two molecules are combine together and form a new substance.Therefor these two reactions are opposite to each other. N2+H2------> 2NH3 (combination reaction) NH3---------->...
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Because in decomposition reaction ,one substance decomposes or breaks into two molecules...while in combination reaction, two molecules are combine together and form a new substance.Therefor these two reactions are opposite to each other. N2+H2------> 2NH3 (combination reaction) NH3----------> N2 + H2( decomposition reaction) read less
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