Question

Define the
and also
following terms with one example
write the equation of the example
combination reaction
Exothermic reaction
Decomposition reaction.​

Answer 1

Answer:

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Answer 2

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combination reaction :

It is a reaction in which two or more elements come together to form a single compound .

Mathematically it is expressed as

A + B --------> AB

here A is a element and B is a element when reaction occurs they get combined to form a compound AB

Example :

$\bf{\color{red}{Mg+O----->Mg{O}_{2}}}$

Exothermic reaction:

It is a reaction in which the heat is released.

for example

$\bf{\color{blue}{{C}_{6}{H}_{12}{O}_{6}+{6O}_{2}----->{6H}_{2}O+6C{O}_{2}+Q(heat\:energy)}}$

Here Q represents heat energy..

Decomposition reaction :

It is reaction in which a single compound gets splited into 2 or more compounds when external energy is supplied to it.

for example:

$\bf{\color{orange}{CaC{O}_{2}----->CaO+C{O}_{2}}}$

Hope this is useful.....