Teflon, a common non-stick cooking surface, is a polymer of tetrafluoroethene. Draw a structural formula of tetrafluoroethene. Then show the result of the reaction using
structural formulas. What type of polymerization is this?

Consider this initial-rate data at a certain temperature for the reaction described by

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?