Question

why are decomposition reaction called the opposite of combination reaction?Write equation for these reaction.​

Answer 1

Answer:

In decomposition reaction,one reactant react to form two or more products while in combination reaction,two or more reactants combine to form one product. That's why, decomposition reaction is called opposite of combination reaction.

Example-

Combination reaction-2H²+O²----2H²O

Decomposition reaction-2H²O----2H²+O²

Hope it will help

Answer 2

Answer:

Two parallel chords of a circle of radius 5cm are on the same side of the centre. If the lengths of the two chords are 16 cm and 9cm , then the distance between the two chords will be