C4 Chemical changes - Higher

What is the reactivity series?

• A list of metals ordered by their solubility

• A list of non metals ordered by their reactivity

• A list of elements ordered by their reactivity

• A list of atoms ordered by their reactivity

How can metals be placed in order of their reactivity?

• Add the metals to water or acid and see which ones react the most (by how much fizzing there is)

• Add the metals to oil and see which ones burn the most

• Add the metals to acid and see which ones make salt and water

• Add the metals to water and leave until they rust

What is the name for a reaction where oxygen is removed from a compound?

• Replacement

• Displacement

• Oxidation

• Reduction

Explain why zinc can be extracted from zinc oxide with carbon but magnesium cannot be extracted from magnesium oxide with carbon

• Carbon is more reactive than Magnesium

• Magnesium is more reactive than carbon

• Zinc is more reactive than carbon

• Carbon is less reactive than zinc

Explain why gold and silver can be found naturally in the Earth's crust

• It is shiny

• It is expensive

• It is rare

• It is very unreactive

What process is used to extract metals more reactive than carbon?

• Electrolysis

• Displacement

• Photosynthesis

• Chromatography

Define an ore

• What is used to row a boat with

• A rock

• A material containing enough metal in it for it to be economically worthwhile to extract the metal.

Define a displacement reaction

• A reversible reaction

• A reaction in which a more reactive element takes the place of a less reactive element in one of its compounds or in solution

• A reaction which relies on heat

• When metals are rearranged into different places.

Define oxidation in the context of loss and gain of electrons

• Oxidation is the loss of electrons

• Oxidation is the gain of electrons

• Oxidation is the loss of oxygen

• Oxidation is the reduction of oxygen

Define reduction in the context of loss and gain of electrons

• Reduction is the gain of electrons

• Reduction is the loss of electrons

• Reduction is the gain of oxygen

• Reduction is the oxidation of electrons