Which of the following processes would you predict to have a positive value for `Delta"Sº"_"reaction"` ? A.
2SO2(g) + O2(g) → 2 SO3(g)

B.
P4O10(s) + 6H2O(l) → 4H3PO4(s)

C.
2POCl3(g) → 2PCl3(g) + O2(g)

D.
2H2(g) + O2(g) → 2H2O(l)

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon