What is removed when 2 monomers combine together?

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Which diagram represents the phase tha occurs after a solid melts?