Question

a)The basic condition necessary for a chemical reaction is_______.
b) in some chemical reaction and insoluble _______ is formed when two solution are mixed .

Answer 1

Answer:

a) Two reactants

b) salt

Answer 2

a)The basic condition necessary for a chemical reaction is two reactants.

b) in some chemical reaction an insoluble precipitate is formed when two solution are mixed.

Explanation:

For a chemical reaction, it is necessary that atleast two reactants should participate. If only one reactant is present then a chemical reaction will not take place at all.

Hence, basic condition necessary for a chemical reaction is two reactants.

Whereas a precipitate is defined as an insoluble substance which is formed when two aqueous solutions chemically react with each other.

For example, $NaCl(aq) + AgNO_{3}(aq) \rightarrow NaNO_{3}(aq) + AgCl(s)$

Here, AgCl is the precipitate.

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