In a chemical equation, which symbol should be used to indicate that a substance is in solution?
a.(s)
b.(g)
c.(l)
d.(aq)

Express the following number in scientific notation. 0.026890 =

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

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.