Question

please give me the answer of this activity..no. 4 ​

Answer 1

Answer:

yes......the beaker become very hot bcoz it produces large amount of energy in the form of heat

Answer 2

combination reaction: if any single product is formed by the combination of two or more reactants, then this reaction is called combination reaction.

example for this reaction is given in ur activity no:4 ; which is the formation of slaked lime (calcium hydroxide){ca(oH)2}.

this is formed when calcium oxide {cao} reacts with water to form calcium hydroxide {ca(oH)2}

calcium hydroxide is also called as slaked lime

this reaction is an exothermic reaction and hence the heat is produced

hope it's helpful

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