Shown are two stereo representations of lactic acid. compare the two structures shown. determine whether they represent identical molecules or mirror images.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

Helium decays to form lithium. which equation correctly describes this decay?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold