Which is the smallest number? a. 2.5 b. 2.9 * 10^-3 c. 4.6 * 10^-4 d. 1.4 * 10^-2

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

What is the mass of sodium in 3 moles of sodium chloride

Condensation happens when water vapor cools. true or false? ?