Explain why PCI5 can be formed whereas
PI5 cannot be formed.

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

Describe the properties of sodium, chlorine, and sodium chloride

What are the coefficients to balance the following equation? ba+br=babr2