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Acids And Bases
Revision of Acids And Bases chapters
Question | Answer |
---|---|
List some everyday acids. | Lemon Juice, Vinegar, Coke |
List the lab acids. | Hydrochloric Acid, Sulphuric Acid, Nitric Acid |
List some everyday bases. | Toothpaste, Milk Of Magnesia, Bread Soda, Gaviscon, Window Cleaner, Caustic Soda |
List some lab bases. | Limewater, Sodium Hydroxide |
What is the chemical formula for Sodium Hydroxide? | NaOH |
What is the chemical formula for Hydrochloric Acid? | HCl |
What do you call a substance, which shows by means of a colour change, if a substance is acidic or basic? | An indicator |
Name an indicator. | Litmus Paper, Methyl Orange, Universal Indicator |
What colour does litmus change to in an acid? | Red |
What do you call a substance, which is neither an acid nor a base? | Neutral |
What is the range of the pH scale? | 0-14 |
What pH have neutral substances? | 7 |
What do we call substances with a pH lower than 7? | Acids |
What do we use to test the pH of a substance? | Universal Indicator Paper |
What is another name for a base which is soluble in water? | Alkali |
What is it called when an acid and a base cancel each other out? | Neutralisation |
Name the gas produced when an acid and a metal react together. | Hydrogen |
Name the second substance produced when a metal reacts with an acid (besides the gas). | A Salt |
Name the gas produced when an acid reacts with a base that's a carbonate. | Carbon Dioxide |
Name the acid produced when carbon dioxide reacts with moisture in the atmosphere that causes rain to be acidic. | Carbonic Acid |
Name the acid produced when Sulphur Dioxide reacts with moisture in the atmosphere that causes rain to be acidic. | Sulphuric Acid |