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GCSE Chemistry (Edexcel) Quiz sobre Edexcel (9-1) Topic 4, criado por https:// revisechemistry.uk em 16-03-2018.

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Edexcel (9-1) Topic 4

Questão 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:

Selecione uma das seguintes:

  • made from plastic

  • carbon neutral manufactoring

  • imported long distances

  • limited battery life

Explicação

Questão 2 de 12

1

Which metal is most reactive?

Selecione uma das seguintes:

  • Iron

  • Magnesium

  • Sodium

  • Zinc

Explicação

Questão 3 de 12

1

Selecione das listas do Menu para completar o 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 ).

Explicação

Questão 4 de 12

1

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

Selecione uma das seguintes:

  • sodium oxide

  • aluminium oxide

  • copper oxide

  • magnesium oxide

Explicação

Questão 5 de 12

1

Preencha os espaços em branco para completar o texto.

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

Explicação

Questão 6 de 12

1

Preencha os espaços em branco para completar o texto.

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

Explicação

Questão 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 .

Arraste e solte para completar o texto.

    cations
    anions
    positive
    negative
    oxidation
    reduction
    oxidise
    reduce

Explicação

Questão 8 de 12

1

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

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 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 .

Arraste e solte para completar o texto.

    copper
    metal ores
    low-grade ores
    rock

Explicação

Questão 10 de 12

1

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

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 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

Arraste e solte para completar o texto.

    left
    right

Explicação

Questão 12 de 12

1

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

Selecione uma ou mais das seguintes:

  • temperature of 450 °C

  • temperature of 350 °C

  • pressure of 100 atmospheres (100 atm)

  • pressure of 200 atmospheres (200 atm)

  • iron catalyst

  • nickel catalyst

Explicação

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