A certain unimolecular reaction is zero order. If the half-life of this reaction is 45 seconds, how long will it take for the reaction to be 70% complete

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.