Hydrogen peroxide, h2o2, changes in the presence of a catalyst in the following reaction. what type of chemical reaction is this? 2h2o2(aq) → 2h2o(l) + o2(g) a) synthesis reaction b) decomposition reaction c) single replacement reaction d) combustion reaction

The correct answer is option b) decomposition reaction .

Explanation:

In a decomposition reaction, a single substance decomposes, producing two or more different substances. The atoms that form a compound are separated to give the products according to the formula:

AB → A + B

This type of reactions can occur spontaneously or caused by certain external factors that promote the breakdown of the molecule into simpler substances.

If the decomposition occurs by the action of a catalyst, as in this case, it is called catalysis.  A catalyst is one of the external factors that can promote the breakdown of molecules.

So, the correct answer is option b) decomposition reaction .

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

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