Is it an acid, base, or neutral? Make your own acid-base indicator from red cabbage, then test various household substances. Acids and bases are classes of materials that have different properties.

Students will also be able to explain that different substances react in characteristic ways that can be used to identify a substance. A pH or acid-base indicator is a compound that changes color ...

Weak bases and alkalis are found in toothpaste, indigestion tablets (to help cure an upset stomach) and baking powder. You should always take care in the laboratory, but strong acids and alkalis ...

Pour desired household chemicals into separate 50 mL beakers. Add a few drops of universal indicator OR about 25 mL of red cabbage indicator and mix. Compare colors to standard solutions in lighted ...

Sodium hydroxide is added to a cylinder of aluminum nitrate, precipitating out aluminum hydroxide. When additional base is added, the precipitate dissolves. The reactions can then be reversed with the ...