18-1

> ======‍NH4+ + Cl======
 * 1) compounds that will ionize to give off __H+ ions__ are acids .HCl + NH3
 * 2) compounds that will ionize to give off __OH- ions__are bases
 * 1) strong acids all electrons ionize, weak acids only a little ionize, concentrated strong acids, dulited weaker
 * 2) strong 0-4 weak 4-7 weak base 7-10 strong base 10-14
 * 3) To determine the pH of a substance requires an __indicator__. Indicators are substances that turn __colors__ at certain pH’s
 * 4) In a neutralization reaction the acid and base (according to the __Arrhenius__ definition) react to form __water__ and a __salt__.