2. What is Acid?
• Acid is a is traditionally considered any chemical
compound that, when dissolved in water, gives a
solution with a hydrogen ion activity greater than
in pure water
• Acid are generally dangerous
• Never drink them or put them near your eyes
• Never pour water into a concentrated acid as it
heats up and can spit hot acid at you. If you must
dilute a concentrated acid with water, pour the
acid slowly and gently into the water.
3. Alkalis
• Alkali is the opposite of acids. They have very
low concentrations of hydrogen ions when
dissolved in water. their pH values are above
7.
• pH 7 is neutral. A solution with a pH of 7 is
neither acidic nor alkaline.
• Alkalis will turn red litmus paper to blue.
