Which of the following can form both high- and low-spin octahedral complexes?
a. zn²⁺b. cr²⁺ c. cu⁺d. cr³⁺
e. all of the above can form either high- or low-spin complexes.

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

Matches the chemical name of each oxide of phosphorus to its chemical formula

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.