Which of the following shows that the combustion of methane produces 802 kJ/mol of energy?
A. CH_(g) + 2O2(g) + 802 kJ/mol → CO2(g) + 2H2O(g)
B. CH4(9) +202(g) → CO2(g) + 2H20(9) - 802 kJ/mol
OC. CH4(9) +202(g) → CO2(g) + 2H2O(g) + 802 kJ/mol
D. CH4(g) + 20 (g)
802kJ
CO2(g) + 2H2O(9)
SUBMIT

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap

What produces wave a)sound b) heats c)transfer of energy d)vibrations

How much would you need to weigh out in order to have 0.2moles of magnesium atoms?