Avoltaic cell is constructed in which the anode is a zn|zn2+ half cell and the cathode is a fe2+|fe3+ half cell. the half-cell compartments are connected by a salt bridge.(use the lowest possible coefficients. use the pull-down boxes to specify states such as (aq) or (s). if a box is not needed, leave it blank.)the anode reaction is: + yeilds + cathode reaction is: + + net cell reaction is: + + the external circuit, electrons migrate fe2+|fe3+ electrode zn|zn2+ electrode. in the salt bridge, anions migrate the fe2+|fe3+ compartment the zn|zn2+ compartment.

Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.

What does x represent in the formula for the compound xcl4?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?