Chem | Questions and Answers(A+ Solution guide)

Ionic Compound - a compound composed of positive and negative ions that are combined so that the numbers of positive and negative charges are equal Covalent Compound - a chemical compound formed by the sharing of electrons The Ideal Gas Law - PV = nRT. Tells you how a gas responds to a change in its physical conditions. change P, V or T, and the others adjust Stoichiometry - that portion of chemistry dealing with numerical relationships in chemical reactions; the calculation of quantities of substances involved in chemical equations Electrolytes - chemical substances that develop an electric charge and are able to conduct an electric current when placed in water; ions Strong Acids - HCl, HBr, HI, HNO3, HClO4, H2SO4 Dissociates completely in water Weak Acids - HF, HCN, HC2H3O2, H2S, H2CO3, HClO Doesn't dissociate completely in water Net Ionic Equation - an equation for a reaction in solution showing only those particles that are directly involved in the chemical change Spectator Ions - ions that do not take part in a chemical reaction and are found in solution both before and after the reaction Acid - a substance that increases the hydrogen ion concentration of a solution