Which of the following materials could have been found in the giant cloud that formed the
solar system?
ohydrogen and helium
ohydrogen and oxygen
o carbon dioxide and oxygen
o liquid and solid water

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.

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?