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Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
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Chemistry, 22.06.2019 23:30
Match each statement with the state of matter it describes
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Hydrogen gas was cooled from 150 K to 50 K. Its new volume (V2) is 75 mL. What was its original volu...
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