How many protons, neutrons, and electrons are there in a neutral atom of 55fe (iron-55)?

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false