2689681
Questão 1
Questão
What is meant by Amphoteric?
Responda
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A molecule or ion that can react as an acid and a base.
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Able to breathe both in water and on land.
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A substance with pH < 7
Questão 2
Questão
Acids react with metals to form salts
Responda
- True
- False
Questão 3
Questão
What kind of Indicator turns yellow in alkali?
Responda
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Litmus
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Phenolpthalein
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Methyl orange
Questão 4
Questão
pH value for a strong acid?
Responda
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1-2
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12-14
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7
Questão 5
Questão
Which of these is NOT an example of a base
Responda
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Metal oxides
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Hydroxides
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Nitrates
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Ammonia
Questão 6
Questão
Bases neutralise acids, forming a ______ and ______
Responda
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Salt, Water
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Salt, Hydrogen
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Salt, Oxygen
Questão 7
Questão
Reacting a base with an ammonium compound (an example of a base reaction) gives ammonia as a product as well as salt and water
Responda
- True
- False
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