How can we differentiate between sodium bromide and sodium iodide

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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