2:31 know that acids in aqueous solution are a source of hydrogen ions and alkalis in a aqueous solution are a source of hydroxide ions An acid is source of hydrogen ions (H+). An alkali is source of hydroxide ions (OH–). Related Posts:Alcohols & Carboxylic Acids quizAcids & Salts (Triple) quizIons quiz3.08 explain why there is a change in the observed frequency and wavelength of a wave when…3.28 understand how the pitch of a sound relates to the frequency of vibration of the source3.29 understand how the loudness of a sound relates to the amplitude of vibration of the source Hydr0Gen2023-01-10T11:39:28+00:00Categories: (f) Acids, alkalis and titrations, 2 Inorganic chemistry, Edexcel iGCSE Chemistry|Tags: 2:31, Chemistry, Double, GCSE, GCSE_Chemistry_Single, GCSE_Chemistry_SpecPoint, SpecPoint, Topic: Acids & Salts, Topic: Acids & Salts (D), Topic: Key Reactions| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail