You can see that in how it is put together. Exodus 6:10–30 form another chiasm.
a. God’s instruction to Moses to go to Pharaoh, and Moses’ protest (Exodus 6:10–12
b. God addresses Moses and Aaron (Exodus 6:13)
c. Genealogy (Exodus 6:14–25)
b' God addresses Moses and Aaron (Exodus 6:26–27)
a' God’s instruction to Moses to go to Pharaoh, and Moses’ protest (Exodus 6:28–30)
Exodus 6:28 connects with Exodus 6:10–12, after which it continues with God’s reaction to Moses’ protest (Exodus 7:1–7).
14 These are the heads of their fathers’ houses: the sons of Reuben, the firstborn of Israel: Hanoch, Pallu, Hezron, and Carmi; these are the clans of Reuben.