The phrase “When I get home, the warm smell from the kitchen greets me at the door” is an example of personification, as it gives human-like qualities to the smell by suggesting it can "greet" someone.
The phrase “The soup gurgles and splats on the stove when it boils over” is an example of onomatopoeia, as it uses words that imitate the sounds associated with the actions (gurgles and splats).