Reactions of Metals
Cards (16)
- Reactivity series: Most reactivePotassiumSodiumLithiumCalciumMagnesiumAluminiumCarbonZincIronNickelTinLeadHydrogenCopperMercurySilverGoldPlatinumLeast reactive
- Reactivity is how vigorously a substance chemically reacts.
- Metals are ordered by their reactivity by comparing their reactions with water, acid or oxygen.
- A list of metals ordered by their reactivity is called a reactivity series.
- Some metals are more reactive than others because they lose their outer shell electron(s) more easily.
- Gold and silver are found naturally as elements in the Earth's crust because they are very unreactive.
- An ore is a rock containing enough of a metal compound to be economically worth extracting.
- Metals less reactive than carbon are extracted by reduction with carbon.
- Oxidation is addition of oxygen and loss of electrons.
- Reduction is removal of oxygen and gain of electrons.
- Metals that are more reactive than carbon cannot be extracted by reduction with carbon so they are extracted using electrolysis.
- Displacement reactions are when a more reactive substance takes the place of a less reactive substance in a compound.
- Ionic equations are equations which give some substances as ions and has spectator ions removed.
- Ionic compounds in solution (or liquid) are given as ions in an ionic equation.
- Spectator ions are ions that are unchanged in a reaction.
- Half equations are equations that show whether a substance is gaining or losing electrons.