When iodine is treated with hot aqueous potassium hydroxide a colourless solution is formed. Addition of concentrated sulphuric acid to the solution causes it to turn red brown as iodine is formed .What fraction of the original iodine is liberated by the sulphuric acid. ​

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?