Why are the elements in group VIIIA unreactive? They are all gases.

They have an even number of electrons in their outer shell.

They have a full outer shell of electrons.

They each have a stable nucleus.

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility

Which statement would indicate the presence of an acid