Security Stud. 1  Full mortise hinges are available with security studs for added safety. 2  With the door in its closed position, a stud attached to one leaf of the hinge projects into a hole in the matching leaf.
Net Ionic Equation. A chemical reaction involves the conversion of reactant atoms or molecules to product. During any chemical reaction, reactant molecules are joined together to form a product which has different chemical and physical properties than the reactants.
Net Ionic Equation Writing Drill. Write molecular, total ionic and net ionic equations for the following, providing a reaction occurs. If there is no reaction, write N.R. Circle all slightly ionized substances. Underline all insoluble substances. A. Reactions involving precipitation. 1.