Add a small amount of each salt to a different beaker and stir to dissolve. Compare the colors to the reference set. Note: the NaCl will not be pH 7, but rather approximately pH 5 due to dissolved ...

pH 0 – 2: strong acid, for example hydrochloric acid or sulfuric acid. pH 3 – 6: weak acid, for example ethanoic acid. pH 7: neutral pH 8 – 11: weak alkali, for example ammonia.

Introduction to Acids, Bases and Salts: Compounds are classified as acids, bases, and salts based on the Arrhenius definition, and as acids or bases based on an operational definition.

Chapter 5 (Acids, Bases and Salts) of Class 7 Science NCERT Book (PDF) is available here for download in PDF format. Download and prepare for CBSE Class 7 Science exam.

GCSE CCEA Double Award Acids, bases and salts - (CCEA) The pH scale Many chemicals are acidic, neutral or alkaline. We can distinguish one from another using indicators. Acidity and alkalinity are ...