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Atom, molecule or ion?
What particles are in...?
32
Chemistry
06/07/2006
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Term
Iron (an element)
 Definition
atoms
Term
chlorine (formula = Cl2)
 Definition
molecules
Term
sodium chloride (a compound)
 Definition
ions (Na+ ions and Cl- ions)
Term
Zinc (an element)
 Definition
atoms
Term
Oxygen (formula = O2)
 Definition
molecules
Term
Mercury (an element)
 Definition
atoms
Term
Carbon dioxide (a compound)
 Definition
molecules
Term
Magnesium oxide ( a compound)
 Definition
Ions (Mg2+ ions and O2- ions)
Term
Water
 Definition
molecules
Term
Magnesium
 Definition
atoms
Term
Sodium
 Definition
Atoms
Term
mercury oxide
 Definition
ions
Term
Mercury chloride
 Definition
ions
Term
tetrachloromethane (formula = CCl4)
 Definition
molecules
Term
methane
 Definition
molecules
Term
crude oil
 Definition
molecules
Term
brass (a mixture of copper and zinc)
 Definition
atoms
Term
iodine
 Definition
molecules
Term
nitrogen
 Definition
molecules
Term
Ammonia
 Definition
molecules
Term
sulphur dioxide
 Definition
molecules
Term
Hydrogen chloride gas
 Definition
molecules
Term
Hydrogen chloride dissolved in water
 Definition
ions (H+ ions and Cl- ions)
Term
sodium oxide
 Definition
ions (Na+ and O2- ions)
Term
ammonia dissolved in water
 Definition
ions (NH4+ ions and OH- ions)
Term
carbon monoxide
 Definition
molecules
Term
ammonia dissolved in water
 Definition
ions (NH4+ ions and OH- ions)
Term
iron (III) oxide
 Definition
ions (Fe3+ ions and O2- ions)
Term
ethene (formula C2H4)
 Definition
molecules
Term
sulphur (a non metal element)
 Definition
molecules
Term
Hydrogen
 Definition
molecules
Term
Hydrogen peroxide (formula = H2O2)
 Definition
molecules