Valence electrons, located in the outermost shell of an atom, play an important role in driving chemical reactions and ...

The rate at which the reaction took place remained steady, regardless of the proxy temperature – suggesting that the role HeH + played in the early Universe did not decline as cooling unfolded ...

Objective Students will be able to identify and control variables to design an experiment to see if temperature affects the rate of a chemical reaction. Students will be able to explain, on the ...