In the type of reaction called ___ two compounds exchange their positive and negative radicals.

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Solution

Double displacement reaction: When in a chemical reaction process, two reactants exchange ions to form two new compounds is said to be a double displacement reaction.
The generalised form of a double displacement reaction is: $AB + CD \to AC + BD$
One metal essentially needs to be more reactive than the other to make the reaction feasible.
An example of a double displacement reaction is:
$HCl (l) + NaOH (aq .) \to NaCl (s) + H_{2} O (l) (Hydrochloric (Sodium (Sodium (water) acid) Hydroxide) chloride)$
Hence, in the double displacement reaction type, two compounds exchange their positive and negative radicals.

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(a) The chemical change involving iron and hydrochloric acid illustrates a ___ reaction.

(b) In the type of reaction called ___ two compounds exchange their positive and negative redicals.

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(a) A reaction in which two or more substances combine to form a single substance is called a ___ reaction.

(b) A ___ is a substance which changes the rate of a chemical reaction without undergoing a chemical change.

(d) The reaction between an acid and a base is called ___

(e) Soluble bases are called ___

(f) The chemical change involving iron and hydrochloric acid illustrates a ___ reaction.

(g) In the type of reaction called ___ two compounds exchange their positive and negative radicals respectively.

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(i) The chemical reaction between hydogen and chlorine is a ___ reaction

(j) When a piece of copper is added to silver nitrate solutuions, it turns ___ in colour.

The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound
(a) is always negative
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Q. Fill in the blanks:
In the type of reaction called....... two compounds exchange their positive and negative radicals respectively.

Q. In the type of reaction called ________ two compounds exchange their positive and negative radicals called ___________.
COMPLETE THE FOLLOWING STATEMENT

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