3 F2(g)+2Fe(s) 2 FeF3(s) write the equilibrium expression Kc

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest

If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+