Ph Scale 0.0 / 5 ? ScienceAcids and AlkalisYears 7-9 (KS3)All boards Created by: Lynx22Created on: 07-11-20 14:34 a) What is a PH Scale? Describe it. b) What is litmus paper? It is a scale that tells you how acidic or alkiline sompthing is. litmus paper is a indicator which turns red in acid and blue when in alkiline 1 of 6 Name four different acidic substances. Coke, car batteries, fruit juce, lemon and hydrocloric acid 2 of 6 Name four different alkaline substances. soap, washing up liquid, ammonia and sodium hydroxide 3 of 6 What colour does litmus paper change if the substance is: a) acidic b) alkaline c) ph neutral a)red b)blue C) depends on the paper 4 of 6 When acids react with alkalis, what happens? It neutrilises out on a 7 5 of 6 Name two indicators of acids and alkalis Universal scale Litmus maper 6 of 6
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