Question

in synthesis reactions, there are always more ____ than
a reactants, products
b products, reactants
in the decomposition example seen here, what does b represent?
a h
b o
what kind of reaction is represented here: h₂co₃ --> h₂o + co₂
a synthesis
b decomposition

Explanation:

1. In synthesis reactions, multiple reactants combine to form a single product, so there are more reactants than products.
2. For the decomposition of $H_2CO_3

ightarrow H_2O + CO_2$, in the chemical formula of water ($H_2O$) and carbon - dioxide ($CO_2$), oxygen is a common element. If we assume a general decomposition context related to the elements in the reactant $H_2CO_3$, oxygen is a likely candidate for what 'B' could represent.

1. The reaction $H_2CO_3

ightarrow H_2O + CO_2$ is a decomposition reaction as a single compound breaks down into two simpler substances.

Answer:

1. A. reactants, products
2. B. O
3. B. Decomposition