una estudiante de secundaria ha escuchado que añadir unas gotas de limon a la zona expuesta del alimento demora el proceso de oscurecimiento ; pero ¿ como podemos indagar cientificamente si esto es cierto ? ayudenme plis

Tell me the answer choices and i would be able to answer. : )

For lesson: cameras, plant presses, newspaper, paper towels, clip boards, pencils, calculators, field guides, metric measuring tapes, paper, transect squares, colored pencils, ph meters, light meters, computers, etc.for extension: baggies for soil samples collecting, distilled water, hand shovels, beakers, boiled rice, microscopes, well microscope slides or regular microscope slides with cover slips

Number of molecules=(12.01+2x15.9994)/112 x na

1. h-br , because h oxidation number is +1 and br oxidation number is -2 so it has the most polar bond