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GCSE (Edexcel) Chemistry Test sobre Edexcel (9-1) Topic 4, creado por https:// revisechemistry.uk el 16/03/2018.

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Edexcel (9-1) Topic 4

Pregunta 1 de 12

1

Two new mobile phones have been designed, the one with the most positive LCA has been selected to be manufactured. Select from below a quality that would have contributed towards its selection:

Selecciona una de las siguientes respuestas posibles:

  • made from plastic

  • carbon neutral manufactoring

  • imported long distances

  • limited battery life

Explicación

Pregunta 2 de 12

1

Which metal is most reactive?

Selecciona una de las siguientes respuestas posibles:

  • Iron

  • Magnesium

  • Sodium

  • Zinc

Explicación

Pregunta 3 de 12

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

Iron can be extracted from iron oxide using a process called ( oxidation, electrolysis, reduction ). This involves heating the ore with ( carbon, oxygen, copper ) monoxide to remove the oxygen from the compound. This process is also called a ( displacement, hydrolysis, combustion ) reaction, and gives two products: iron and ( carbon dioxide, carbon monoxide, copper ).

Explicación

Pregunta 4 de 12

1

Which metal oxide can be reacted with carbon to produce the metal?

Selecciona una de las siguientes respuestas posibles:

  • sodium oxide

  • aluminium oxide

  • copper oxide

  • magnesium oxide

Explicación

Pregunta 5 de 12

1

Rellena los espacios en blanco para completar el texto.

Group 1 metals react with cold water to form and a metal .

Explicación

Pregunta 6 de 12

1

Rellena los espacios en blanco para completar el texto.

Calcium, magnesium, and aluminium react with dilute acids to form and a solution.

Explicación

Pregunta 7 de 12

1

The reactivity series can be used to see the relative tendency for metal atoms to form - the higher up the series, the more likely it will form a ion.
Something similar can be said for a metal's resistance to - the higher up the series, the more easier it is to .

Arrastra y suelta para completar el texto.

    cations
    anions
    positive
    negative
    oxidation
    reduction
    oxidise
    reduce

Explicación

Pregunta 8 de 12

1

A more reactive metal can displace a less reactive metal from a compound in solution.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 9 de 12

1

The Earth’s resources of are limited. One of the metals we are worried about is , as its ores are becoming scarce. Luckily new ways of extracting copper from have been developed. These include phytomining, and bioleaching. These methods avoid a lot of energy costs compared to traditional mining methods of digging, moving and disposing of large amounts of .

Arrastra y suelta para completar el texto.

    copper
    metal ores
    low-grade ores
    rock

Explicación

Pregunta 10 de 12

1

Equilibrium is reached when the forward and reverse reactions, of a reversible reaction, occur at a similar rate.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 11 de 12

1

The concentrations of the reactants vs products are not necessarily equal, and there is usually more of one than the other:
if the concentration of the reactants is higher than products, we say the equilibrium lies to the
if the concentration of the products is higher than the reactants, we say the equilibrium lies to the

Arrastra y suelta para completar el texto.

    left
    right

Explicación

Pregunta 12 de 12

1

The conditions for the Haber Process are (select all that apply):

Selecciona una o más de las siguientes respuestas posibles:

  • temperature of 450 °C

  • temperature of 350 °C

  • pressure of 100 atmospheres (100 atm)

  • pressure of 200 atmospheres (200 atm)

  • iron catalyst

  • nickel catalyst

Explicación