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banana
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gift
Win 20 points!
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rocket
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baam
Lose 25 points!
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25
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What is the meaning of alkalis?
Chemical substances that ionise in water to produce hydroxide ions
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monster
Reset all scores!
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gold
Win 50 points!
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rocket
Go to first place!
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banana
Go to last place!
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20
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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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25
×
Diagram shows an egg shell in a beaker containing vinegar. What is X?
Hydrogen gas
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5
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Give one example of weak alkalis
ammonia
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15
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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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5
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Give one example of strong acid
Hydrochloric acid, sulphuric acid, nitric acid
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25
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Give two substances that ionize partially in water
ammonia, Ethanoic acid
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monster
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seesaw
Swap points!
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gift
Win 15 points!
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baam
Lose 20 points!
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20
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Give one example of triprotic acid
phosphoric acid, H3PO4
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20
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What is the meaning of acids?
Chemical substances ionise in water to produce hydrogen ions
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15
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A ................ is a subtance that reacts with acids to produce salt and water only.
base
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5
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Turns litmus paper from red to blue
Alkali
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lifesaver
Give 25 points!
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seesaw
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fairy
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5
10
15
20
25
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baam
Lose 20 points!
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25
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Adding liquid X to water decreases its pH. This show that liquid X is....
Acid
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