Which one of the following is a decomposition reaction?

2 answers:

8 0

It would be A because Decomposition is when a substance breaks down into two.

4 0

<h3><u>Answer;</u></h3>

A. 2SO3 (g) → 2SO2 (g) + O2 (g)

<h3><u>Explanation;</u></h3>

A decomposition reaction is a type of chemical reaction where a single compound is broken down into two or more elements or new compounds.
<em><u>Decomposition reactions involve a single substance as a reactant and more than one substance as the product.</u></em> Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.
In the question above; <em><u>the reaction; 2SO3 (g) → 2SO2 (g) + O2 (g) is an example of decomposition reaction.</u></em>

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scoundrel [369]

Answer:OB=58.3m

Explanation:

So here cow wanders 30m in north and turns 22 degrees in right side and moves 40m more, as shown in figure given.

now take the starting point as a origin such that cow moves in x-y co-ordinate axis.

As shown in figure length OA is the length when cow moves in north or y direction. Later she takes 22 degrees turn to right and moves 40m more.

So the final displacement is the length of cow from the origin that is length OB.

now co-ordinates of B are [40cos22°,40sin22°+30] i.e [37.084,44.984]

now displacement of cow= length of OB

= $\sqrt{[37.084]^{2}+[44.984]^{2} }$