One quarter of a 1-mole piece of iron turns to rust in six months. which rate describes the speed at which the iron rusts?

How many grams of phosphorus are contained in 5.09 moles of phosphorus?

What is the chemical formula for dihydrogen monoxide

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+