Calculate the volume of a sphere in mm3 and with the right number of sig figs given the following formula: V = 4/3πr3 and r = 17.282 mm.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

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?

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)