The complex [CrFo1 has a green color. Which of the following statement(s) is (are) true?
1. The molecular geometry is ocatahedral.
2. The blue color is due to unpaired d electrons of Cr
3. The insoluble salt CrPO,(s) should be more soluble in a solution of F (aq)
than in pure water.
4. The charge of Cris +2.

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

What must happen before a body cell can begin mitotic cell division