hen some hot metal was placed in water the temperature changed from 20.0oC to 26.0oC. It was found that 300.0 J of heat was absorbed. What is the mass of the water?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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 electron configuration represents the electrons in an atom of sodium in the ground state at stp