What is true of a synthesis reaction? the products are often pure elements. the reactants must be in an aqueous solution. there is only one product. there must be three or more reactants.

There is only one product in a synthesis reaction.

There is only one product.

Explanation:

A synthesis reaction is what the name indicates, a reaction where two or more substances or elements converge to create a new compound out of the elements that are the reactants, it has only one product as it is a new compound formed by the reactants and it must have at leas two or more reactants that give place to a new product.

the answer is 303.15 or 303