Ethanol, an organic compound, has the following structural formula. H
H
H-C-0-0-H
Η Η
What is the chemical formula for ethanol?
CHO
O C₂ H₂O
O C₂H₂O2
C₂H₂O

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a