(2) (b) A student added copper metal to colourless silver nitrate solution.
The student observed:
pale grey crystals forming
the solution turning blue.
.
Explain how these observations show that silver is less reactive than copper.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

the correct answer would be d. hope this !

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.