Examine the diagram of a cell.
Which organelle is marked with an X?
lysosome
O Golgi body
O chloroplast
vacuole

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?