Students are copying their homework assignment from the whiteboard in their dimly lit classroom Some students are wearing eyeglasses, some are not wearing anything over their eyes, and one student is wearing dark sunglasses. Which material allows the least light to pass through it so that the smallest amount of light reaches the student's eyes?
Eyeglasses
Sunglasses
Air

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?