The following statement is correct().
选项:
A:44g CO2 and 32g O2 have the same numbers of molecules and therefore different volumes;
B:12g CO2 have the same mass as12g O2, so their mass is the same;
C:1mol CO2 and 1mol O2 have the same mass, so they have the same numbers of molecules;
D:22.4L CO2and 22.4L O2 have the same volumes, so their mass must be the same.
发布时间:2024-05-14 19:16:46