What best describes the motion of iron atoms in solid iron?

This drawing shows a human body system. what is the primary function of this body system?

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?