So3 is an empirical formula for which of the following?
оа. s206
b. s40,
ос. sо4
od. s203
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Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

What are the first three quantum numbers for the electrons located in subshell 2s?