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5 Cards in this Set
- Front
- Back
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Everyday gases |
Hydrogen-the sun and stars are made up of hydrogen and it makes up 90% of the universe |
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Displacement reaction |
A displacement reaction occurs when a more reactive metal will displace a less reactive metal from a compound. A thermite reaction is an example of a displacement reaction |
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Redox reaction |
Redox reaction is a reaction in which both reduction and oxidation occurs. Reduction is the gain of electrons and oxidation is the loss of electrons. example: calcium and zinc, calcium experiences oxidation since it is higher on the activity series, therefore zinc experiences reduction. |
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Thermite reaction |
A thermite reaction is when iron oxide and aluminum powder react to create molten iron. Thid can occur when magnesium ribbon is burned in a iron/aluminium solution. This is an exodatic reaction and creates a lot of heat and light. |
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Common use |
-carbon dioxide-used in fizzy drinks/can be used for extinguishers -Hydrogen- used in rocket ships -Helium- used in hot air balloons |
