plz help in these ques
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deepak1111bhatt:
gadhe ke bache agar mil gaye hote to tujse kyo mangta
What do you mean
You're rude and i don't like you,kid
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Will you got good hand writing and just believe that you can do it
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Answer:Essentially, decomposition reaction are the opposite of combination reactions. A compound decomposes (i.e.,"splits-up") into two or more compounds and/or elements. For example mercury(II) oxide will, upon heating, decompose into mercury metal and oxygen:HgO⇒Hg+1/2O₂
Since heat had to be added to make this reaction go, it is an endothermic reaction. Most decomposition reactions are endothermic. Another example of a decomposition reaction is the heating of calcium carbonate (sea shells, chalk):CaCO₃⇒CaO+CO₂
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