Aflask contains an equal mixture of oxygen and argon. which of the following statements is true about the effusion of the gases?

argon will effuse 1.07 times faster than oxygen.

oxygen will effuse 1.19 times faster than argon.

oxygen will effuse 5.29 times slower than argon.

argon will effuse 1.48 times slower than oxygen.

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

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.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o