98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

This is a synthesis reaction

Explanation:

This is a synthesis reaction because the two elements are being joined together. This is the only type of reaction because it is being conjoined into one and for it to be any other of the types of reactions would require it to be either split up or of two different segments.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.