What is the structural formula for propene and hydrogen gas? As well as the type of reaction and product(s)?

Answer 1

Propene is a 3 carbon (prop) alkene (double bond). It is CH₃CH=CH₂. When this compound reacts with hydrogen gas (H2), the reaction is referred to as hydrogenation, and the product is propane (3 carbon alkane)

CH₃CH=CH₂ + H₂ ==> CH₃CH₂CH₃

propene.........hydrogen.....propane