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Electrons, protons and which other sub-atomic particle were discovered in the 19th and early 20th century?
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In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
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Atriple covalent bond involves two atoms sharing three pairs of electrons. true false
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Electrons, protons and which other sub-atomic particle were discovered in the 19th and early 20th ce...
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