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Acids

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QuestionAnswer
Which ion do all acids have in common? H+ (hydrogen ion)
Which ion do all alkalis have? OH (hydroxide ion)
Which pH number represents neutral? 0-6
Which pH number represents alkali? 8-14
Which colours represent acid for universal indicator? Red, Orange ,Yellow
Which colour represents alkali for universal indicator? Purple, Blue
Which colour represents neutral for universal indicator? Green
How do you test the pH? Universal Indicator
Neutralisation reaction Acid+ alkali --> salt+water
Acid + metal -->? Acid + metal --> salt + hydrogen
How do we name salts based on the same acid? Hydrochloric acid = chloride Sulfuric acid= sulfate Nitric acid= nitrate
How do we name salts? 1st word= name of the metal 2nd word= based on the acid
Describe the method of making salts 1. Add excess metal or base to an acid 2.Filter out excess 3.Heat solution 4.Leave to cool and crystillise
What is the order of the reactivity series? - Down group 1 metals - Down group 2 metals - Carbon - Transition Metals - Hydrogen - Copper - Gold
How to test for reactivity of metals? - React metal with acid - Measure volume of gas produced in a set time
Created by: Schoolwork14
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