C1 0.0 / 5 ? ScienceChemistryGCSEAQA Created by: ReeceunwinCreated on: 17-05-16 19:11 What's in the middle of a atom? Protons and neutrons 1 of 45 Wha charge does a proton have? Positive 2 of 45 What is the mass of a proton? 1 3 of 45 What charge does a neutron have? No charge 4 of 45 What is the mass of a neutron? 1 5 of 45 What charge does a electron have? Negative 6 of 45 What is the mass of an electron? 0 7 of 45 What charge does a Atom have overall? No charge 8 of 45 What happens if some electrons are added or taken away? It becomes an ion 9 of 45 What is the bottom number on a element? Protons\electrons 10 of 45 What is the top number on a element? Protons + neutrons 11 of 45 What makes limestone useful for buildings? Sturdy 12 of 45 What is the name for limestone? Calcium carbonate 13 of 45 What happens when limestone is heated? It thermally decomposes 14 of 45 What's does limestone make when it's thermally decomposed? Calcium oxide + carbon dioxide 15 of 45 What are the other elements hat decompose in the same way? Magnesium, copper, zinc, sodium carbonate 16 of 45 What other thins is limestone useful for? Cement and concrete 17 of 45 What are the environmental problems digging for limestone can cause ? Noise pollution, destroys habitats, waste pollution 18 of 45 What are the pros of using limestone? Makes houses and roads, neutralises acidic soil, used in power stations and provides jobs 19 of 45 What is a metal ore? A rock which contains enough metal to make it worthwhile to extract metal from it 20 of 45 Which to groups on the periodic table are the most reactive? 1 and 7 21 of 45 Is group 8 reactive or unreactive and why? Unreactive because it's got a full outer shell 22 of 45 What is atomic structure to do with? Protons, electrons and neutrons 23 of 45 Why is the disadvantage of using electrolysis? It's very expensive 24 of 45 What goes into the blast furnace? Carbon, ore and limestone 25 of 45 What comes out the blast furnace? Co2, metal and **** 26 of 45 What is the advantage of recycling metals? Saves a lot of energy 27 of 45 What is a disadvantage of recycling metals? Can be difficult to separate 28 of 45 What happens in a fractional distillation? Crude oil is heated up and most of it evaporates the rest is put in a column which condenses it if cooled enough and the hot heat rises 29 of 45 What two things do u need for cracking? High temperature and a catalyst 30 of 45 What could too much carbon dioxide do to the environment? Global warming 31 of 45 What can too much sulphur dioxide do? Acid rain 32 of 45 What does too much particulates do to the environment? Global dimming 33 of 45 What is electrolysis? Breaking down a substance using electricity 34 of 45 What conducts electricity and allows the whole thing to work? Free ions 35 of 45 What are the basic properties of metals? Strong, good at conduction heat, good at conducting electricity 36 of 45 Which are better alloys or metals? Alloys because they're harder 37 of 45 What is crude oil? A mixture 38 of 45 What is a mixture? Two or more elements or compounds that aren't chemically bonded 39 of 45 What are crude oils made of? Hydrocarbons 40 of 45 What is the best way to split crude oils up? Factional distillation 41 of 45 When the crude oil is heated up what happens? The oils rise and leave at different levels 42 of 45 What are the levels in the fractional distillation system? Bitumen, oil, diesel, kerosene, naphtha , petrol and then refinery gases 43 of 45 What is the formulae for a alkane? Cn+H2n+2 44 of 45 What is the formulae for alkenes? Cn+H2n 45 of 45
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