By the amount of protons it has. From the (Atomic Number)
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How to find out how many neutrons something has
RFM-Atomic Number
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Electron structure
2, 8, 8, 18
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What is Mg2+ + Fi-
MgF2
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Balance This equation: CH + O -> CO2 + H2O
CH4 + 2O2 -> CO2 + 2H2O
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What is limestone
Calcium carbonate
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What are advantages and disadvantages with limestone quarrying.
ADV: It creates jobs, it provides building materials nearby. DIS: Pollution, Noise pollution, It ruins the landscape.
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The iron produced in the blast furnace is 4% carbon
Pig iron
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Carbon + oxygen
Carbon Dioxide
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Carbon dioxide + carbon
Carbon monoxide
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Iron oxide + carbon monoxide
Iron + carbon dioxide
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Iron oxide + carbon
Iron + carbon dioxide
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How is alimunimum extracted
Using electrolysis.
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What is alminium used for
Aircraft, foil, drinks cans, saucepans and bicycles.
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Copper sulphide + oxygen →
Copper + sulphur dioxide
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What does Sulphur dioxide cause
Acid rain
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Copper can be extracted by bioleaching, what is it.
Bacteria feed on copper ores to get copper solutions. These solutions are also reacted with iron to extract the copper.
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Copper is extracted by phytomining, what is it.
Plants take up copper from the soil. The plants are then burnt and the ashes are put in sulphuric acid. Scrap iron is added to the copper sulphate to displace it.
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Covalent bonding is...
Two atoms share a pair of electrons, they're non metal.
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Ionic bonding is...
Atoms can lose or gain electrons in chemical reactions. When they do this they form charged particles called ions.
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