Zusammenfassung der Ressource
Frage 1
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The higher the concentration of hydrogen ions in an acidic solution, the lower the pH
Frage 2
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As hydrogen ion concentration in a solution increases by a factor of 10, the pH of the solution decreases by [blank_start]1[blank_end]
Frage 3
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Complete the diagram to show the different colours indicators turn for these different solutions. Two have been completed for you.
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green
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orange
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red
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purple
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yellow
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colourless
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pink
Frage 4
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A positive test for hydrogen gas would be to bubble it through limewater, and it turn cloudy/milky.
Frage 5
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Which of the following salts are soluble?
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sodium chloride
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sodium nitrate
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silver chloride
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barium sulfate
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barium chloride
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sodium carbonate
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copper carbonate
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calcium hydroxide
Frage 6
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electrolysis of copper chloride solution will form:
[blank_start]copper[blank_end] at the cathode
[blank_start]chlorine[blank_end] at the anode
electrolysis of sodium chloride solution will form:
[blank_start]sodium[blank_end] at the cathode
[blank_start]chlorine[blank_end] at the anode
electrolysis of sodium sulfate solution will form:
[blank_start]sodium[blank_end] at the cathode
[blank_start]oxygen[blank_end] at the anode
electrolysis of water acidified with sulfuric acid will form:
[blank_start]hydrogen[blank_end] at the cathode
[blank_start]oxygen[blank_end] at the anode
electrolysis of lead bromide will form:
[blank_start]lead[blank_end] at the cathode
[blank_start]bromine[blank_end] at the anode
Antworten
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copper
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hydrogen
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chlorine
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oxygen
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sodium
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hydrogen
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chlorine
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oxygen
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sodium
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hydrogen
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oxygen
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sulfur
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hydrogen
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oxygen
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sulfur
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oxygen
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hydrogen
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sulfur
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lead
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hydrogen
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bromine
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oxygen
Frage 7
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sodium + [blank_start]hydrochloric[blank_end] acid → [blank_start]sodium[blank_end] chloride + water
[blank_start]copper[blank_end] oxide + sulfuric acid → copper [blank_start]sulfate[blank_end] + water
[blank_start]potassium[blank_end] hydroxide+ [blank_start]nitric[blank_end] acid → potassium nitrate + water
[blank_start]magnesium[blank_end] carbonate + hydrochloric acid → magnesium [blank_start]chloride[blank_end] + water + [blank_start]carbon dioxide[blank_end]
Antworten
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hydrochloric
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sodium
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copper
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sulfate
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potassium
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nitric
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carbon dioxide
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magnesium
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chloride
Frage 8
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When making a soluble salt from an acid and insoluble reactants:
excess of the reactant (a metal, metal oxide, or metal carbonate) is added to make sure all of the insoluble reactant reacts
Frage 9
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When completing a titration, you need to work out a mean titre, and you must only include results that are concordant in your calculation.
Frage 10
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most common sulfates (apart from lead sulfate, barium sulfate, calcium sulfate) are soluble
Frage 11
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sulfuric acid + calcium [blank_start]carbonate[blank_end] → calcium [blank_start]sulfate[blank_end] + [blank_start]water[blank_end] + carbon dioxide
Frage 12
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Label the diagram below
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DC current
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AC current
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electrolyte
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cation
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cathode
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anion
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anode