Final answer:
A synthesis reaction is where multiple reactants combine to form a single product, as displayed in the formation of water from hydrogen and oxygen or salt from sodium and chlorine.
Step-by-step explanation:
The type of reaction that results in the formation of only one product is a synthesis reaction. In a synthesis reaction, elements or compounds combine to form a single new substance. This reaction contrasts with other types such as decomposition reaction, single-replacement reaction, or double-replacement reaction, all of which involve either the breakdown of a compound into multiple products or the swapping of components between reactants.
An example of a synthesis reaction is the formation of water from hydrogen and oxygen:
2 H2(g) + O2(g) → 2 H2O(l)
In this case, multiple reactants (hydrogen and oxygen) have combined to form a single product, which is water (H2O).
Therefore, the answer to the question is:
- Synthesis reaction
and to classify and give a reason for this type of reaction we can state:
The formation of salt from sodium and chlorine is a synthesis or composition reaction because multiple reactants (sodium and chlorine) combine to form a single product (salt). This reaction can be represented as:
2 Na(s) + Cl2(g) → 2 NaCl(s)