[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 …
1. Name a food that contains an acid.2. Describe the taste of lemons and limes.3. What does ‘corrosive’ mean?4. What should you do if you spill acid?5. How does an indicator show the difference between an acid and an alkali?6. What colour does red cabbage juice go when it is added to lemon juice?7. What …