What type of reaction occurred between the zinc and iodine? (synthesis, decomposition simgile
replacement, or double replacement)

Synthesis reaction

Explanation:

A synthesis reaction is a type of reaction in which two or more elements or small compounds combine to form a large compound.For example, a reaction between zinc and iodine to form zinc iodide is an example of a synthesis reaction.Decomposition reactions, on the other hand, are opposite of synthesis reactions in which a large compound is broken down to individual elements or smaller compounds.

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)