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


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