Examlex
The condition that develops when acetylcholine levels in the brain are deficient is
Dichlorodifluoromethane
A chemical compound once widely used as a refrigerant and propellant but now recognized for its ozone-depleting properties.
Strontonium
A chemical element with the symbol Sr, known for its use in fireworks and as a component in certain alloys.
Oxide Ion
An ion consisting of oxygen and carrying a negative two charge, represented as O^2-.
Helium Ion
A positively charged helium atom, often resulting from the removal of one electron from the neutral atom.
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