In 4/2he, what does the number 4 indicate?
the atomic number
the ion
the atomic m...
Chemistry, 10.10.2019 01:30 orianabrown15
In 4/2he, what does the number 4 indicate?
the atomic number
the ion
the atomic mass number
the charge
Answers: 2
Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
Chemistry, 22.06.2019 13:00
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.
Answers: 2
Chemistry, 22.06.2019 17:00
In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added
Answers: 1
Health, 07.11.2019 17:31
Arts, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31
Biology, 07.11.2019 17:31
History, 07.11.2019 17:31
Biology, 07.11.2019 17:31
History, 07.11.2019 17:31
History, 07.11.2019 17:31
Physics, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31
Biology, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31
Mathematics, 07.11.2019 17:31