quiz on acids and alkalis. using the quiz... click through the quiz to see the questions and...
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Quiz on acids and alkalis
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1. What is the pH of a strong acid ?
pH 1 Answer
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2. What is the correct name for the reaction between an acid and an alkali?
neutralisation Answer
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3. How can you tell from its name that sodium hydroxide is an alkali ?
It includes the word "hydroxide"
Answer
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4 Name three common strong acids
Hydrochloric acidSulfuric acidNitric acid
Answer
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5. Lemon juice contains citric acid. Suggest a pH value for citric acid
pH4 ( it is a weak acid) Answer
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6. What gas is released when an acid reacts with a metal ?
hydrogen Answer
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7. How can you test for the gas released when an acid reacts with a metal ?
The hydrogen will "pop" with a
flame
Answer
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8. When hydrochloric acid reacts with sodium hydroxide, what are the products ?
Sodium chloride and
waterAnswer
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9. When sulfuric acid reacts with potassium hydroxide,what are the products ?
Potassium sulfate and
waterAnswer
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10. What gas is released when hydrochloric acid reacts with calcium carbonate ?
Carbon dioxideAnswer
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11. What reactants ( starting chemicals) would produce sodium nitrate ?
Sodium hydroxideand
nitric acidAnswer
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12. Soap is a very weak alkali. Suggest a pH value for soap
pH8(pH7 is neutral so a very
weak alkali would have a pH just greater than this)
Answer
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