Which of the following is NOT conserved during the combustion reaction of propane shown below? Select all that apply. C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)

moles of molecules
moles of atoms
atoms
mass
none of the above

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?