Question

What are some examples of synthesis reactions?

Answer 1

A synthesis reaction, also known as a composition reaction, is characterized by the reaction of two or more substances chemically joining to form a single product.

Here are three examples

Magnesium metal reacts with oxygen to produce magnesium oxide

`2 Mg + O_2 -> 2MgO`

In this next example, sodium reacts with chloride to form table salt.

`2Na + Cl_2 -> 2 NaCl`

In the examples above, two different elements react to form a compound.

In the last example, two different compounds react to form a new compound which is a single product.

Calcium oxide reacts with sulfur dioxide to produce calcium sulfite.

`CaO + SO_2 -> CaSO_3`