It took 342.3 s for 37.04% of a substance to react according to first-order kinetics. What is the value of the rate constant?

A__ is two or more substances that are together in the same place but are not chemically combined

What will most likely happen when two bromine atoms bond together?

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.