25723697
Descrição
FlashCards por Baited Man, atualizado more than 1 year ago
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Criado por Baited Man
quase 4 anos atrás
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| Questão | Responda |
| Typical properties of metals - | - Solid - Strong - Malleable - Conductor of heat and electricity - Shiny/ reflective - Sonorous - Ductile - High melting and boiling points. |
| Typical properties of a non - metal - | - Usually liquid or gas - Non - rigid structure - Low density - Dull, not shiny - Low melting and boiling points |
| Alloy | An alloy is a mixture of metals or a mixture of a metal and another element. |
| Metal + Water | Metal hydroxide + hydrogen |
| OH | Hydroxide |
| How many extra electrons does group one have? | 1 |
| How many extra electrons does group two have? | 2 |
| Metal + oxygen | Metal oxide |
| Oxidation | When a metal reacts with oxygen |
| What happens when metal is left in contact with air or water? | Corrodes, for Iron it's called rust. |
| Preventing corrosion - | - Plastic coating - Oil - Galvanising (Zinc coating) - Painting - Sacrificial protection (Using a more reactive metal over the one that needs to be saved from corrosion.) |
| Laboratory acids | - Nitric Acid - Sulphuric Acid - Hydrochloric Acid |
| Nitric Acid | HNO_3_ |
| Sulphuric Acid | H_2_SO_4_ |
| Hydrochloric Acid | HCL |
| Acids | All acids are in liquid form and have hydrogen |
| How many extra electrons does hydrogen have - | 1 |
| How many extra electrons does nitrate have - | -1 |
| How many extra electrons does chloride have - | -1 |
| How many extra electrons does sulfate have - | -2 |
| Metal + Acid | Salt + Hydrogen |
| Salt | Salt is a compound made of a metal and non - metal. |
| Precipitate | This means insoluble salt, so it slowly builds up as a solid. |
| Metal Carbonate has - | 1 metal atom 1 carbon atom 3 oxygen atoms |
| Metal carbonate + acid | Salt + water + carbon dioxide |
| Displacement reaction | This is where one element is replace by another in a compound as its more reactive - E.g. Mg+ CuSO4 = Cu + MgSO4 |
| More reactive metal + Less reactive metal compound | = More reactive metal compound + Less reactive metal |
| More reactive metal compound + Less reactive metal | = More reactive metal + Less reactive metal compound - No reaction |
| Metal hydroxide + Acid | Salt + Water |
| Metal oxide + water | This reactions produces an alkaline solution |
| Metal oxide + acid | Neutralise themselves |
| Non - metal + oxide | Non - metal oxide. E.g. Sulfur + Oxide = Sulfur dioxide. This is an acid. |
| Non - metal oxide + bases | Non-metal oxides react with bases and neutralise them. |
| Non - metal oxide + water | Some non-metal oxides dissolve in water and, when they do, they produce acidic solutions. |
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