A compound effuses through a porous cylinder 5.71 times slower than helium. what is its molar mass? identify the compound.

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

May someone me with these science questions

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.