Q=538 joules, the reaction is endothermic q=538 joules, the reaction is exothermic
q=-538, the reaction endothermic
q=-538 joules, the reaction is exothermic

What’s the scientific notation for the number 6,840,000,000

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