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. Acid-base indicators change color ...

Their oxides form with water the bases which unite with acids to form the salts ... Thus there are e.g.Chloride (-1) Chlorite (+3) Chlorate (+5) Perchlorate (+7) Sulphide (-2) Sulfite (+2 ...

Caustic soda and chlorine are made by the electrolysis of salt solutions, and potassium chlorate by the electrolysis ... that in all dilute solutions of acids, bases and salts—in short, the ...

How can just four nitrogenous bases--adenine, cytosine, guanine, and uracil--possibly code for all 20 amino acids? Thus, early researchers quickly determined that the smallest combination of As ...