Which equivalence factor should you use to convert from 4.28 x 1019 molecules of oxygen (o2) to moles of o2? (1 mol o2/4.28 x 1019 molecules o2) (4.28 x 1019 molecules o2/1 mol o2) (1 mol o2/6.02 x 1023 molecules o2) (6.02 x 1023 molecules o2/1 mol o2)

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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