[6] 8. Match the following substances with type os substances: Substance Sodium hydroxide Water Lemon juice Type of Substance Neutral Acid Alkali [3] 9. Write ‘True’ for the statements you consider as true and ‘False’ for the incorrect statement: (a) Universal Indicator changes colour and shows the pH of a substance ……..…………….. (b) A pH …
1. What does corrosive mean? 2. How would you test a substance, to see if it is an acid? 3. Write down the formula for: sulfuric acid, nitric acid, calcium hydroxide, and ammonia solution 4. Phenolpthalein is an indicator. What does that mean? 5. What does this pH value tell you about the solution? a …