Question

what type of reaction is shown below?
2 kclo3 (s) → kcl (s) + o2 (g)
double replacement
acid/base neutralization
synthesis
decomposition

Explanation:

• Double replacement: In a double - replacement reaction, two compounds exchange ions. For example, \(AB + CD

ightarrow AD+CB\). Here, we have a single compound as a reactant, so it is not a double - replacement reaction.

• Acid/base neutralization: An acid - base neutralization reaction involves an acid and a base reacting to form a salt and water (\(H_2O\)). There is no acid or base in the given reaction (\(2KClO_3(s)

ightarrow KCl(s)+O_2(g)\)), so it is not an acid/base neutralization.

• Synthesis: A synthesis reaction has the form \(A + B

ightarrow AB\) (combining two or more reactants to form one product). The given reaction has one reactant and two products, so it is not a synthesis reaction.

• Decomposition: A decomposition reaction has the form \(AB

ightarrow A + B\) (a single compound breaking down into two or more simpler substances). The reaction \(2KClO_3(s)
ightarrow 2KCl(s)+3O_2(g)\) (after balancing, the stoichiometric coefficient of \(O_2\) is 3) shows a single compound (\(KClO_3\)) decomposing into \(KCl\) and \(O_2\)).

Answer:

decomposition