What is AGsystem for the system that is described by the following data?

AHsystem = - 232 kJ, T = 293 K, ASsystem = 195 J/K

AGsystem = AHsystem - TASsystem

O-289 kJ

O - 175 kJ

O 256 kJ

O 56,903 kJ

How many atoms are in 5 grams of Fe2O3? (ITS NOT 5)

An ion of oxygen contains eight protons and has a charge of 2-. What must occur for this ion to become a neutral oxygen atom? Group of answer choices It must lose two electrons. It must gain two protons. It must gain two electrons.

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Which term represents the fixed proportion of elements in a compound.

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Which of the following changes the solid Earth the most?