Which isotope listed in the choices below is most likely to be radioactive? Ca-40
Pb-207
Pu-241
Mg-24

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

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.

Word equation for k+ h2o yield koh + h2