Use the problem below to answer the question: how many grams of h2 would be formed if 34 grams of carbon reacted with an unlimited amount of h2o? the reaction is: c + h2o → co + h2 the equation is balanced. the starting substance is carbon, c. the ending substance is hydrogen, h2. using the periodic table, find the molecular mass of h2. h2 = g/mole

How many grams of n2h4 will be consumed by 23 g of n2o4

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 is the independent variable in this investigation? mass volume sample number substance density