Year8_Chemistry
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17 Terms
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ionic bond
involves the reaction of two opposite positively charged ions
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Endothermic
A reaction where energy is gained; temperature decreased
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Exothermic
A reaction where energy is released; temperature increases
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bubbles stop forming
When a reaction with a metal and acid is done
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salt + hydrogen
metal + acid
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water + salt
acid + alkali
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water + salt + carbon dioxide
acid + carbonate
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The number of protons and neutrons
Atomic mass
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magnesium hydroxide, 5 atoms
Mg(OH)2
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hydrochloric acid, 3 atoms
HCl
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sulfuric acid, 10 atoms
H2SO4
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the overall mass of the reactants stays the same during the reaction
conservation of mass
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a reaction where elements switch places
displacement
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an acid an alkali react together; pH 7; produces salt + water
neutralisation
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burning a fuel
combustion
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If there’s no more oxygen in a combustion reaction, it produces carbon monoxide.
incomplete combustion
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To make sure the equation has equal atoms on both reactants and products:
balancing an equation
Note 
Flashcards (51)