Acids, Bases and Neutralisation

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AS - Level Chemistry (4 - Acids and Redox) Flashcards on Acids, Bases and Neutralisation, created by Bee Brittain on 20/04/2016.
Bee Brittain
Flashcards by Bee Brittain, updated more than 1 year ago
Bee Brittain
Created by Bee Brittain over 8 years ago
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Question Answer
All acids contain hydrogen
When an acid is dissolved in water it does what? Releases H+ ions into the solution
Strong Acid - Fully Dissociates - Releases all its H atoms into solution as H+ ions -Example: HCl
Weak Acid - Partially Dissociates - Releases only a small proportion of its available H atoms as H+ ions in solution - Example: CH3COOH
Bases - definition A base neutralises an acid to form a salt
Bases - Examples - Metal Oxide -Metal Hydroxide - Metal Carbonate - Ammonia (NH3)
Alkali - Definition An alkali is a base that dissolves in water releasing hydroxide ions (OH-) into the solution. An example of a base/alkali is sodium hydroxide.
Neutralising an acid with a base H+ ions react with a base to form a salt and neutral water. H+ ions from the acid are replaced by metal or ammonium ions from the base.
Acid + Alkali --> salt + water
Ionic Equation for neutralisation H+ + OH- --> H2O
Acid + Metal Oxide --> Metal Salt + Water
Acid + Metal Hydroxide --> Metal Salt and Water
Neutralisation of sulphuric acid with Copper (II) Oxide = sulphuric acid + Copper (II) Oxide --> Copper sulphate + Water H2SO4 (aq) + CuO (s) --> CuSO4 (aq) + H2O (l)
Acid + Metal Carbonate --> Metal Salt + Water + Carbon Dioxide
Neutralisation of Zinc Carbonate with Sulphuric Acid Zinc Carbonate + Sulphuric Acid --> Zinc Sulphate + Water + Carbon Dioxide ZnCO3 (s) + H2SO4 (aq) --> ZnSO4 (aq) + H2O (l) + CO2 (g)
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