For each statement in questions 20 through 22 select the chemical reaction, chosen from the list below, that is most closely associated with that statement. 7GYlmD-QRCVyP5KeVwgbBYMPZfCmbge7mRp EL3QfRG9BXk6BTNbjCdbDHoq_FHl49rycdJ RZW1OJRLexby0XabK0UQdkO7xHbyjfA963d qcnMRhrIrkIbsgEQPAdYdJZ7E8QLX6i This reaction is used in the brewing industry

I  

2

+I  

−

⇌I  

3

−

. This reaction is set up in aqueous medium. We start with 1 mole of I  

2

 and 0.5 mol of I  

−

 in 1 L flask. After equilibrium, the excess of AgNO  

3

 gave 0.25 moles of yellow ppt. Then the equilibrium constant is:

Explanation:

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).