Why were Scorpions the first onto dry land? What gave them this advantage?

The rules of engagement (roe) working group is often used to (select all that apply.)

Compare and contrast physical changes with chemical changes.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.