Calculate the number of moles of Cu2+ in 400.0 mL of 0.300 M CuSO4 solution

is it a purebred? it looks more like a red nose, but it doesn't have the red could it be a staffordshire bull terrior? unsure if that's the right name for it sorry

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

answersilicon (si); oxygen (o);