What is the number of moles of KF in a 29-gram sample of the compound? A) 1.0 mol

B) 2.0 mol

C) 0.50 mol

D) 5.0 mol

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

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?

Why do oxygen have a strong attractive force for electrons