To tell if oxidation or reduction will take place, what will be oxidized or reduced and allows us to construct half equations.
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What is a covalent bond?
A bond between a non-metal and non-metal, in which the two atoms share an electron with each one giving an electron each.
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What is a dative covalent bond?
When both electrons are given from one atom , leaving a lone pair in its outer shell.
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What is a hydrogen bond?
Is the bond of a dipole=dipole, must be between H and mostly the three other elements (O, C and N)
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What is the Pauling scale?
Measures the electronegativities, it increases across periods and decreases down groups.(Fluorine is the highest.
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What is a polar bond?
Different atoms hat have different electronegativities, one is pulled more than the other so a dipole is induced.
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What does a Mass Spectra show?
The peak gives atomic mass and the peak intensity gives relative abundance.
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What is a London Force?
Is an induced dipole - dipole bond, a dipole is induced when electrons are randomly on one side. Forces are very weak and only apply to non-polar molecules.
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What is a non-polar bond?
Similar atoms with the same electronegativity, pull on electrons at the with the same strength
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What is the mole?
The amount of particles or atoms in a substance, this is known as Avogadro's constant (6.02 X 10^23
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What are the stages of Mass Spectrometer?
Ion Source, Analyser and Detector
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What is the electron pair repulsion?
The shape adopted is the one which keeps repulsive forces to a minimum.
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Other cards in this set
Card 2
Front
What is the rule of oxidation numbers in simple molecules?
Back
the number of electrons which must be added or removed to become neutral
Card 3
Front
What is the rule of oxidation numbers in molecules?
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