Why the number of d-block electrons of transition elements' ions has to be between 1 and 9. What prevents them from being transition when it is 0 or 10?

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

What will most likely happen when two bromine atoms bond together?