One mole of solid cr2 o3 at 2500 k is dissolved in a large volume of a liquid raoultian solution of al2 o3 and cr2 o3 , in which xcr2o3 = 0.2 and which is also at 2500 k. calculate the changes in enthalpy and entropy caused by the addition. the normal melting temperature of cr2 o3 is 2538 k, and it can be assumed that δsm, al2o3 δsm, cr2o3 =

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule