Although Y is the abbreviation for yttrium, the X and Y ions in the video were entirely made up. Let's see how much made sense. Match the fictitious X-Y ions with their formulas.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

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+