Nomenclature of Some Special Cations. I. Cations that do not require Roman numerals: Previously you had learned that elements in Groups IA and IIA, and aluminum form cations of a. fixed charge. You are now going to add on to this list, a few more ions in the transition metals that. also do not require a fixed charge because they generally form only ions with charges as shown. below:
Take an example, if a recipe calls for 350 grams of plain flour, then you refer to a conversion table saying it's about 2.5 cups.
How many grams is 1 cup of flour? How many grams that are in 1 cup of flour varies, depending upon  the type of flour. For example, there are 140 grams in 1 cup of  plain flour but there are 130 grams in 1 c â¦ up of self raising flour.