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CHEMISTRY KSSM FORM 4 | ACIDS, BASES AND SALTS
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Give one example of triprotic acid
phosphoric acid, H3PO4
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A ................ is a subtance that reacts with acids to produce salt and water only.
base
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Give one example of weak alkalis
ammonia
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Give two substances that ionize partially in water
ammonia, Ethanoic acid
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Name the particles in a solution of hydrogen chloride is responsible for its acidity properties?
Hydrogen ion
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What is the formula to calculate the pH value of acid
pH = -log [H+]
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Turns litmus paper from red to blue
Alkali
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What is the meaning of alkalis?
Chemical substances that ionise in water to produce hydroxide ions
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Adding liquid X to water decreases its pH. This show that liquid X is....
Acid
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Carbonic acid is a mineral acid with formula, H2CO3. What is the basicity of carbonic acid?
Diprotic acid
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Diagram shows an egg shell in a beaker containing vinegar. What is X?
Hydrogen gas
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What is the meaning of acids?
Chemical substances ionise in water to produce hydrogen ions
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Give one example of strong acid
Hydrochloric acid, sulphuric acid, nitric acid
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