A known number of moles of gas is placed in the flexible container below What will happen it some of the gas is removed from the container while
the pressure and temperature are kept constant?
The volume will increase
The volume will decrease
The volume will stay the same

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?

Name the element in group 17, period 2. (periodic table)

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?