A.体积④<①<②<③ | B.密度①<④<③<② |
C.原子数④<③<②<① | D.质量④<①<③<② |
6.72L |
22.4L/mol |
3.01×1023 |
6.02×1023 |
23.1g |
154g/mol |
2.3g |
23g/mol |
A.密度比为16:17 | B.氢原子比为3:4 |
C.物质的量比为1:1 | D.体积比为16:17 |
A.6.72LCO | B.6.6gCO2 | C.8gSO3 | D.9.8gH2SO4 |
A.分子数之比为1:1 | B.原子数之比为1:1 |
C.体积之比3:2 | D.物质的量之比2:3 |
A.40% | B.44% | C.55% | D.不确定 |
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