When explaining chemical reactions to a friend, Brianna models a reaction by taking several colors of modeling clay and making a sculpture of a horse. Which type of chemical reaction is Brianna most likely explaining?

In the given question Brianna is trying to make a whole figure by combining different single elements.

Explanation:

Here are the different coloured that are used to join and make one piece this method that Brianna is following is called synthesis.

The combination here is of simple substances that are combined directly to make a complex compound. The compound formed is complex while the substances that combined together can be element or compound or a combination of both.