Presentation on theme: "Acids and Bases Chapter 4-3. Acids and Bases If you have an ionic compound and you put it in water, it will break apart into ions and form an acid or."— Presentation transcript:
Acids and Bases If you have an ionic compound and you put it in water, it will break apart into ions and form an acid or a base. Acid: If one of those ions is H (acidic). Is free to give a proton Base: If one of the ions is OH (basic). Accepts a proton
pH Scale The pH scale is used to measure how acidic or basic a liquid is. The scale goes from values very close to 0 through 14 Neutral (Distilled water) is 7 Acids are between 0 and 7 Bases are between 7 and 14
pH Scale That pH scale is a measure of the number of H+ ions in a solution. If there are a lot of H+ ions, the pH is very low. If there are a lot of OH- ions, the number of H+ ions is very low, so the pH is high.
Acids and Bases Acid Sour taste Burning or itchy on skin Reacts with most metals Orange Juice Tomatoes Vinegar Base Bitter taste Slippery Soap Lye (used for unclogging drains)