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V2O3和V2O5按不同的物质的量之比混合可按 …
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V2O3和V2O5按不同的物质的量之比混合可按 …
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Miscellaneous Office School Stationery Items
V2O3和V2O5按不同的物质的量之比混合可按计量发生完全反应,今欲制备V8O17,则V2O3和V2O5的物质的量之比为( )A. 1:2B. 2:1C. 3:5D. 5:3
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