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24 Cards in this Set
- Front
- Back
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What are the group 1 Metal is known as |
Alkali metals |
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What are the physical properties of group 1 metals |
Low melting points very soft |
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Are group 1 metals reactive if so why |
Yes because they only have one outer electron which they will readily lose to form a plus ion with a stable electronic structure |
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What happens if you react then with cold water |
They produce hydroxide of the metal and hydrogen gas. |
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What do you see if you react lithium with water |
Lithium will move on the surface and fizz |
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Do you Group 1 elements get less or more reactive as you go down |
More because the alpha electron is further away from the nucleus so there is less forces of attraction to Hold then in Place |
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What a group 0 elements |
Noble gases All inert and colourless |
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For some of the everyday uses of noble gases |
Argon is using lightbulbs as it’s nonflammable Noble gases are also using flash photography HeliumWhat are the trends in noble gases you some balloons and airships as has lower density |
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What are the trends in noble gases |
When the melting point and density increases as you go down |
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What is the equation for rate of reaction |
Amount of reactant used or amount of product formed divided by time |
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How to do a precipitation reaction for rates of reaction |
Mix two see-through solutions which produce a precipitate in a flask Put flask on top of a piece of paper that has a mark on it see how long it takes for the mark to become obscured. Faster it disappears the faster the rate of reaction |
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Describe experiment for rate of reaction using change of mass |
Put flask with two Substances that react to make at least one gas on a mass balance put cotton wool to stop liquids or solids escaping quicker reading on balance drops faster rate of reaction |
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Experiment to measure rates of reaction using volume of gas given off |
Put a gas syringe in the top of a flask which contains two substances that give off a gas when substances react it will push the gas syringe back and measure the amount of gas given off |
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What are halogens |
Group 7 elements |
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What type of molecules do halogens exist as |
Diatomic molecules sharing one pair of electrons in a covalent bond which gives both atoms a full outer shell |
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What does Chloe in existence at room temperature |
Fairly reactive poisonous green gas |
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What does bromine exist as at room temperature |
Poisonous brown liquid which gives off orange vapour |
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What does iodine exist says at room temperature |
Dark grey crystalline solid which gives off a purple vapour when heated |
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Do you halogens get more or less reactive as you go down the group |
Less reactive |
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How do you test for chlorine |
Holding a damp blue litmus paper over it chlorine will turn litmus paper red for a moment and then turn it white |
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What happens if I Halogen reacts with metal |
Create salts cold metal halite for examples of sodium chloride |
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What happens if I Halogen reacts with hydrogen |
Creates a hydrogen halide for example hydrogen chloride |
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Redox reactions the halogens gain electrons and the halite ions lose electrons |
Redox reactions the halogens gain electrons and the halite ions lose electrons |
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How can use displacement reactions to show the reactivity trend of halogens |
Measure out a small amount of halite salt solution into a test tube add a few drops of halogen solution to it and shake the tube gently if the colour changes then a reaction has happened the halogen has replaced the halite ions from the salt |
