sfhKSDFHHSFO/chem

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  • Created by: Elvis
  • Created on: 22-04-13 19:00
what was only discovered in the 1800s? what did they have no idea of?
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what did John Newland arrange the table as?
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2 of 66
what were the problems with newlands table?
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3 of 66
What did dmitri mendeleev do?
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4 of 66
What was happening after mendeleev to the table?
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what is the modern periodic table baseed on?
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what is shielding?
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7 of 66
Give 4 properties of group 1 metals (what is it called?) and explain
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what are the metals in group 1 and group 7?
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9 of 66
explain how alkali metals reaction with water
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what are group 7 metals and give properties? explain
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what does displacement in group 7 metals mean?
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12 of 66
give the coloured vapours in halogens
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13 of 66
explain transition metals and properties
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give compounds and colours of transition metals
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15 of 66
explain difference between hard and soft water
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explain how water gets hard
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what is scum?
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what is problem with scum?
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19 of 66
what is scale?
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what are benefits of hard water and explain?
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explain temporary and permanent hardness?
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22 of 66
explain how to soften hard water? (give ways)
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23 of 66
what are ion exhange columns?
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explain titration
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25 of 66
explain why water quality essential ?
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explain water treatment (the process)
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explain water filters
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explain distillation? whats other word for it? and problem
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explain fluoridation and chlorine? benefit
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what are disadvantages of using fluoride?
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disadvantages of using chlorine?
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how to control fluoride levels?
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33 of 66
explain what moles and concentration is
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how to do titration to find out concentrations
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give example of titration calculation
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give example of titration calculation (2)
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how to measure energy transfer? explain problem and controlling heat loss
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define exothermic and endothermic (give examples of each)
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explain bond breaking with energy
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explain bond forming with energy
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explain how fuel energy is calculated using a calorimetry
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what is the problem of fuels providing energy?
release energy to generate electricity and power cars. has effect on env't-- burning fossil fuels releases co2, a greenhouse has (cause global warming and other climate change) crude oil, running out-expensive, price of it-big economic effect
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explain exothermic reaction energy level diagram
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explain endothermic reaction energy level diagram
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explain how catalysts lower the activation energy
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show bond energy calculation
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explain hydrogen and oxygen reaction (and uses)
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explain what hydrogen gas is used for and pro and cons of it
hydrogen gas burnt in o2 as a fuel in combustion engine of vehicles PRO: produces water as by product which is clean CONS: need special expensive engine. require energy source to make the reaction -difficult to store (very explosive)
49 of 66
explain a hydrogen fuel cell (with a adv)
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explain half equations in a hydrogen fuel cell (diagram)
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explain why the car is developing fuel cells (adv)
replace conventional petrol/diesel engine -fuel cell vehicles doesnt produce conventional pollutants(no greenhouse gases) only by products are water,heat ADV:less depended on crude oil, use in cities where air pollution from traffic is problem
52 of 66
why should people not depend on hydrogen fuel cells?
fuel cells wont mean end of conventional power stations/ dependence on fossil fuels: is a gas(take more space to store) -explosive, difficult to store safely -made from either hydrocarbons(fossil fuels) or electrolysis of water (electricity needed)
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how to test for metal ions?
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give flame test for various metal ions (with colour)
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how to do flame test in compound in lab
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how to test on metal ions in hydroxides
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give table of coloured insoluble hydroxides
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What are the four negative ions we can test
carbonates, halides, sulfate, nitrates
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test for carbonates
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test for halides
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test for sulfates
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test for nitrates
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explain the high pressure and temps in the vessel
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what does the catalyst do and what if it was not there? what kind of metal is used
trans metal
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apart from data given, what else could be used for fuel in calorimetry?
how much fuel used, through a balance, for calculating energy
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Other cards in this set

Card 2

Front

what did John Newland arrange the table as?

Back

.

Card 3

Front

what were the problems with newlands table?

Back

Preview of the front of card 3

Card 4

Front

What did dmitri mendeleev do?

Back

Preview of the front of card 4

Card 5

Front

What was happening after mendeleev to the table?

Back

Preview of the front of card 5
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