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01-06-2018
Chemistry

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Which substance can't be broken down by chemical means?
(1) Ammonia
(2) antimony
(3) methane
(4) water

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02-06-2018

Antimony cannot be broken down by chemical means because it is an element, a principle building block of matter. All other choices are compounds, which can be separated if put through enough stress to break the bonds between the atoms.

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