Edexcel (9-1) Topic 3

Descripción

GCSE (Edexcel) Chemistry Test sobre Edexcel (9-1) Topic 3, creado por https:// revisechemistry.uk el 16/03/2018.
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Test por https:// revisechemistry.uk, actualizado hace más de 1 año
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Creado por https:// revisechemistry.uk hace más de 6 años
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Resumen del Recurso

Pregunta 1

Pregunta
The higher the concentration of hydrogen ions in an acidic solution, the lower the pH
Respuesta
  • True
  • False

Pregunta 2

Pregunta
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]
Respuesta
  • 1

Pregunta 3

Pregunta
Complete the diagram to show the different colours indicators turn for these different solutions. Two have been completed for you.
Respuesta
  • green
  • orange
  • red
  • purple
  • yellow
  • colourless
  • pink

Pregunta 4

Pregunta
A positive test for hydrogen gas would be to bubble it through limewater, and it turn cloudy/milky.
Respuesta
  • True
  • False

Pregunta 5

Pregunta
Which of the following salts are soluble?
Respuesta
  • sodium chloride
  • sodium nitrate
  • silver chloride
  • barium sulfate
  • barium chloride
  • sodium carbonate
  • copper carbonate
  • calcium hydroxide

Pregunta 6

Pregunta
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
Respuesta
  • copper
  • hydrogen
  • chlorine
  • oxygen
  • sodium
  • hydrogen
  • chlorine
  • oxygen
  • sodium
  • hydrogen
  • oxygen
  • sulfur
  • hydrogen
  • oxygen
  • sulfur
  • oxygen
  • hydrogen
  • sulfur
  • lead
  • hydrogen
  • bromine
  • oxygen

Pregunta 7

Pregunta
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]
Respuesta
  • hydrochloric
  • sodium
  • copper
  • sulfate
  • potassium
  • nitric
  • carbon dioxide
  • magnesium
  • chloride

Pregunta 8

Pregunta
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
Respuesta
  • True
  • False

Pregunta 9

Pregunta
When completing a titration, you need to work out a mean titre, and you must only include results that are concordant in your calculation.
Respuesta
  • True
  • False

Pregunta 10

Pregunta
most common sulfates (apart from lead sulfate, barium sulfate, calcium sulfate) are soluble
Respuesta
  • True
  • False

Pregunta 11

Pregunta
sulfuric acid + calcium [blank_start]carbonate[blank_end] → calcium [blank_start]sulfate[blank_end] + [blank_start]water[blank_end] + carbon dioxide
Respuesta
  • sulfate
  • carbonate
  • water

Pregunta 12

Pregunta
Label the diagram below
Respuesta
  • DC current
  • AC current
  • electrolyte
  • cation
  • cathode
  • anion
  • anode
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