Notes. 1  For a quick gluten-free gravy, while the roast is cooking, heat 2 Tbsp of butter/fat in a sauce pan. 2  If you are making the roast ahead of time, it is a great idea to use the broth left in the roasting pan to make this gravy as directed above. 3  Stretch this meal by braising extra root veggies on the side.
The remaining part of the original water molecule is called a hydroxide ion (negative charge because it kept an extra electron, shorthand = OH-). Although present at very low levels in solution, H+ and OH- ions can have enormous effects on the properties of a solution, especially when they are not in balance. In pure water, every hydroxide ion that forms creates a hydrogen ion, so there are equal numbers of anions and cations.
Since removing H + ions from water molecules is one way to increase the OH-ion concentration in a solution, metal hydrides are bases. A similar pattern can be found in the chemistry of the oxides formed by metals and nonmetals. Nonmetal oxides dissolve in water to form acids.rrhenius acids include compounds such as HCl, HCN, and H 2 SO 4 that ionize in water to give the H + ion. Arrhenius bases include ionic compounds that contain the OH-ion, such as NaOH, KOH, and Ca(OH) 2.