Acylindrical glass tube 12.7 cm in length is filled with mercury (density =13.6 g/ml). the mass of mercury needed to fill the tube is 105.5 g. calculate the inner diameter of the tube (volume of a cylinder of radius r and length h is v=ïr2h).

What is the overall order of reaction for rate = k[no]2[o2]

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.