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Pregunta 1
Pregunta
What is an Alkalai
Respuesta
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A base that dissolves in water
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A base that is not soluble
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An acid that corrodes the skin
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A base that will react explosively with an acid
Pregunta 2
Pregunta
Which of the following is true?
Respuesta
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If a substance has a pH of 0+ then it is Acidic
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If a Substance Has a pH of 0- then it is Acidic
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If a Substance has a pH of below 3 then it is Acidic
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If a Substance has a pH of below 7 then it is Acidic
Pregunta 3
Pregunta
What colour will a neutral solution turn Universal indicator paper
Respuesta
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Blue
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Yellow
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Green
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red
Pregunta 4
Pregunta
When acids dissolve in water, what do they produce?
Respuesta
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aqueous hydrogen ions, H+(aq)
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aqueous hydroxide ions, OH–(aq)
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aqueous Chlorine ions, Cl+(ag)
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aqueous Sulfate ions, S-(aq)
Pregunta 5
Pregunta
What do Alkalies produce when dissolved in water?
Respuesta
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aqueous Hydroxide ions, OH-,(aq)
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aqueous Hydrogen ions, H+,(aq)
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aqueous Chlorine ions, Cl-, (aq)
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aqueous Sulfur ions, S+, (aq)
Pregunta 6
Pregunta
Which is the correct equation for the Neutralisation reaction
Respuesta
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H+(aq) + OH–(aq) → H2O(l)
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H+(aq) + H2O(l) → OH-(aq)
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H+(aq) + OH-(aq) = Cl-(l)
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H+(ag) + Cl-(aq) = H2O(I)
Pregunta 7
Pregunta
When a Acid and base react, what is the result product?
Respuesta
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Chlorine + Water
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Salt + Chlorine
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Salt + Water
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Chlorine + Salt
Pregunta 8
Pregunta
What are most artificial fertilizers made from?
Respuesta
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Ammonium
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Chlorine
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Salt
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Sulfur
Pregunta 9
Pregunta
When Crystalising the salts, how should you make the crystals bigger?
Respuesta
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Evaporationg the water at a lower temperature
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Evaporating the water at a hotter temperature
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Evaporationg the water more quickly
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Evaporation the water slowly
Pregunta 10
Pregunta
What can Precipitation reactions be used for?
Respuesta
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Dissolving a insoluble salt in water
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Removing the salts from water
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Removing unwanted Ions from a solution
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