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anions, molecules and cations
anions, molecules and cations
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phosphate
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PO43-
nitrate
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N3-
sulphate
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SO42-
carbonate
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CO32-
sulphide
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S2-
Oxide
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O2-
sulphite
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SO32-
dichromate (VI)
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Cr2O72-
hydroxide
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OH-
nitrate
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NO3-
fluorine
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F2
Chlorine
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Cl2
Bromine
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Br2
Iodine
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I2
Lithium
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Li+
Sodium
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Na+
Potassium
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K+
Rubidium
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Rb+
Caesium
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Cs+
Francium
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Fr+
Silver I
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Ag+
Ammonium ion
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NH4+
Hydrogen ion
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H+
beryllium
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Be2+
magnesium
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Mg2+
calcium
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Ca2+
Strontium
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Sr2+
Barium
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Ba2+
Iron II
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Fe2+
Zinc II
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Zn2+
Nickel II
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Zn2+
Nickel
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Ni2+
Copper II
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Cu2+
Lead II
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Pb2+
Boron
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B3+
Aluminium
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Al3+
Iron (III)
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Fe3+
Chromium (III) ion
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Cr3+
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angielski
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Мой урок
common collocations
Liczby po angielsku
Liczebniki po angielsku
Imiona angielskie męskie
phrasal verbs
ujebany
Rudolph The Red-Nosed Reindeer
Мой урок
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