4 Sb + 3 O2→ 2Sb2O3
how many moles of Sb2O3 will be formed when you have 20 moles of oxygen gas

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

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?

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw