Common Ions

Given the formula for an ion, give it's name.
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penguix
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Last updated: December 9, 2025
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First submittedDecember 1, 2025
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Hint
Answer
Ni²⁺
nickel II
Al³⁺
aluminum
SO₃²⁻
sulfite
Cr₂O₇²⁻
dichromate
H₂PO₄⁻
dihydrogen phosphate
K+
potassium
MnO₄⁻
permanganate
CrO₄²⁻
chromate
IO₂⁻
iodite
Br⁻
bromide
Cu+
copper I
Na+
sodium
Se²⁻
selenide
HSO₄⁻
hydrogen sulfate
Cd²⁺
cadmium
Hint
Answer
Co³⁺
cobalt III
Mg²⁺
magnesium
Fe³⁺
iron III
BrO₄⁻
perbromate
PO₃³⁻
phosphite
BrO⁻
hypobromite
SCN⁻
thiocyanate
O₂²⁻
peroxide
Mn³⁺
manganese III
Fe²⁺
iron II
IO⁻
hypoiodite
BrO₃⁻
bromate
Rb+
rubidium
NH₄⁺
ammonium
H₂PO₃⁻
dihydrogen phosphite
Hint
Answer
Hg₂²⁺
mercury I
ClO⁻
hypochlorite
N³⁻
nitride
HCO₃⁻
hydrogen carbonate
IO₃⁻
iodate
H+
hydrogen
Cs+
cesium
H₃O⁺
hydronium
Pb⁴⁺
lead IV
P³⁻
phosphide
HSO₃⁻
hydrogen sulfite
I⁻
iodide
Sr²⁺
strontium
SO₄²⁻
sulfate
Hg²⁺
mercury II
Hint
Answer
C₂H₃O₂⁻
acetate
Ag+
silver
HPO₄²⁻
hydrogen phosphate
O²⁻
oxide
S²⁻
sulfide
Li+
lithium
Zn²⁺
zinc
PO₄³⁻
phosphate
C₂O₄²⁻
oxalate
NO₂⁻
nitrite
Ba²⁺
barium
ClO₃⁻
chlorate
H⁻
hydride
Mn²⁺
manganese II
Sn²⁺
tin II
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