An aqueous solution of potassium iodide turns from colourless to brown. What happens to the iodide ions?
A.)lodide ions are oxidised due to gain of electrons
B.)lodide ions are oxidised due to loss of electrons.
C.)lodide ions are reduced due to loss of electrons.
D.)lodide ions are reduced due to gain of electrons.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.