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.
â¦ away with the H+ ion making a hydronium ion. The hydroxide ion, or OH-ion, is left in a free state. We might see the equation for this reversible reaction written like this:   2 H2O (l) H3O+ (aq) + OHâ (aq)   This is the self-ionization of water.It's always happening in liquid water.e might see the equation for this reversible reaction written like this:   2 H2O (l) H3O+ (aq) + OHâ (aq)   This is the self-ionization of water. It's always happening in liquid water.