Some photosynthetic prokaryotes use hydrogen sulfide (H2S) instead of water as their photosynthetic hydrogen donor. How does this change the ultimate products of photosynthesis? Assume all other photosynthetic components are like those in plants.

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

Which change to the system wood cause the freely-moving piston to lower?