• acids ,are sour/tart, feel like water, may sting when touched, react strongly with metals, conduct electricity since they ionize in solutions, and turn blue litmus paper red.
,• Bases, are bitter, slippery and smooth, do not react with metals usually, conduct electricity, and turn red litmus paper blue.
Acids →When H+ ions dissociates in a solution, acids area created
→pHs of less than 7 indicate acidity,
Base →Bases are created from the dissociation of OH− in solution.
→ pH of greater than 7 indicates a base
3. How buffers work in living organisms and their importance.
• Buffer is a chemical substance that maintains the pH of living organisms.
,• This means that they are able to resist certain changes in the body's pH level ( ,for example...if there is a sudden addition of acid/base in the body, they are able tomaintain stable internal invironment)
,• Therefore, buffers are necessary for survival of living cells.
