What is the enthalpy change called when one mole of a compound forms from its elements?

What is an exothermic reaction?

According to the second law of thermodynamics, entropy of an isolated system tends to:

Which law states that heat energy is conserved in all processes?

What is Hess's Law used for?

What is the strongest type of acid based on ionization?

Which thermodynamic quantity measures the randomness of a system?

The pOH of a solution with pH 4 is:

Gibbs free energy determines the spontaneity of a reaction; a negative value indicates the reaction is:

Which of the following is an amphoteric substance?

What is the standard enthalpy of formation of an element in its most stable state?