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Acids And Bases 1- GCSE / IGCSE

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Published in: Chemistry
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Acid base theories Indicators Examples Reactions

Salman F / Doha

10 years of teaching experience

Qualification: Post Graduate in Chemistry, BSc in Chemistry, MS in Chemistry, Bachelors degree in Education

Teaches: Chemical, Biology, Chemistry, Physics, Science

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  3. oummary quesuons 1 a What distinguishes alkalis frorm other bases? b What do all alkalis have in common? c Show the change that happens when potassium hydroxide (KOH) dissolves in water using an equation, including state symbols. 2 a What ions do all acids produce in aqueous solution? H + b Show the change that happens when hydroiodic acid (HI) dissolves in water, including state symbols. H t R t 3 How could you use universal indicator paper as a way Of distinguishing between distilled water, sodium hydroxide solution, and ett&QQcid solution? -4- 4 Which would be the more accurate way of finding the pH of a solution, using universal indicator paper or a pH sensor and datalogger? Why? Univasd Mcator pH solutkjn 2 3 4 5 6 7 8 9 10 11 12 13 14 Hydrochloric acid Lermn jn Orange Wit* Vinegar Bhck coffee Raimwater Pure veer Seawater Milk of maglesä Soap Waglhg X)da Oven clearwr Sodium hy&oxide acidÉ "Eutral WItfy alkalne Figwe 2 The pH scale Very tells us how acidic or alkah a solution is
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