Chemistry

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aqueous
dissolved in water
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compounds
when atoms combine during a reaction
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covalent bonds
where atoms share electrons to gain a full outer shell
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delocalised electron
an electron that isn't associated with an atom or bond.
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electrode
a conductor through which electricity enters or leaves an object
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electronic structure
the state of electrons in an atom
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electrons
carry an electric charge inside an atom
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isotope
forms of an element with the same number of protons and electrons, but a different number of neutrons.
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mixture
when atoms have been mixed together, but there is no chemical bond between them.
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neutralisation
when an acid and an alkali react to make a salt and water
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elements
substances made up of atoms that all have the same number of protons and neutrons in their nucleus
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ionic bonds
a metal loses electrons, which are transferred to a non-metal during a reaction, changing the charge of the atoms
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solutions
mixtures of two or more substances
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neutrons
found in the nucleus of an atom, has no electric charge
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protons
found in the nucleus of an atom, has a positive electric charge
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activation energy
The energy needed to start the reaction.
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Atom economy
The way measure the atoms wasted when making a chemical.
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Concentrations of solutions
The amount of a substance in a certain volume of a solution.
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Collision theory
The collusion frequency during a reaction: the more colliding particles, the faster the reaction.
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Electrolysis
Where an electrical current is passed through an electrolyte (molten or dissolved ionic compound) to cause a reaction.
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Moles
The unit for amount of substance.
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Oxidation
When metals react with oxygen to form oxides.
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Percentage yield
The mass of a product made.
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Polymers
Monomers linked together to form a long molecule.
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Reduction
The loss of oxygen from a substance.
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Other cards in this set

Card 2

Front

when atoms combine during a reaction

Back

compounds

Card 3

Front

where atoms share electrons to gain a full outer shell

Back

Preview of the back of card 3

Card 4

Front

an electron that isn't associated with an atom or bond.

Back

Preview of the back of card 4

Card 5

Front

a conductor through which electricity enters or leaves an object

Back

Preview of the back of card 5
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