Aaishah  Din
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Chapter 5.1 - the reactivity series:

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Aaishah  Din
Criado por Aaishah Din aproximadamente 7 anos atrás
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5.1 The Reactivity Series

Questão 1 de 11

1

Preencha os espaços em branco para completar o texto.

Metals are important in everyday life. In , metals are used to make bicycles, cars, ships, trains, and aeroplanes.
Metals have to be extracted from their raw materials, .

Explicação

Questão 2 de 11

1

Selecione das listas do Menu para completar o texto.

Most metals in ores are ( chemically, physically ) bonded to other elements in compounds. Many of these metals have been ( oxidised, reduced ) by air to form their ( oxides, reductions ). Oxidation is the ( addition, reduction ) of oxygen, and involves a ( loss, gain ) of electrons.

Explicação

Questão 3 de 11

1

Which of these statements are true?

Selecione uma ou mais das seguintes:

  • Oxidation is the gain of electrons, and is when oxygen is added. Reduction is the removal of oxygen, and involves the loss of electrons.

  • Oxidation is the loss of electrons, and is when oxygen is added. Reduction is the removal of oxygen, and involves the gain of electrons.

Explicação

Questão 4 de 11

1

Preencha os espaços em branco para completar o texto.

The reactivity series is a list of metals in order of their reactivity. The reactive metals are at the top and the reactive at the bottom. is at the top and is at the bottom.

Explicação

Questão 5 de 11

1

Most metals react vigorously with water.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 6 de 11

1

doesn't react at all with water, and so can be used to make water pipes. used to be used, until it was discovered that it was . Alkali metals react vigorously and give off gas, leaving solutions.

Arraste e solte para completar o texto.

    Copper
    potassium
    Lead
    Iron
    poisonous
    contagious
    hydrogen
    Hydroxide
    alkaline
    acidic

Explicação

Questão 7 de 11

1

This is the order of reactivity:
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)

Arraste e solte para completar o texto.

    Potassium
    sodium
    lithium
    calcium
    magnesium
    aluminium
    zinc
    iron
    tin
    lead
    copper
    silver
    gold

Explicação

Questão 8 de 11

1

What gas is present when a metal reacts with water? How do you know?

Selecione uma ou mais das seguintes:

  • hydrogen gas. We know because there is a pop.

  • Hydroxide gas. We know because there is a change in colour of the solution.

  • oxygen gas. We know because there is oxidation taking place.

Explicação

Questão 9 de 11

1

Preencha os espaços em branco para completar o texto.

3 ways to know if a reaction has taken place:
1) a has formed - we know a has formed usually if there is bubbles.
2) a change in the solution
3) there is an .

Explicação

Questão 10 de 11

1

hydrogen gas is given off if metals react with water/dilute acids.

Selecione uma das opções:

  • VERDADEIRO
  • FALSO

Explicação

Questão 11 de 11

1

Preencha os espaços em branco para completar o texto.

The equation used to show a metal reacting with water is:
- + +

Explicação