What have scientists learned about the cuttlefish through observation? A. The cuttlefish should not be hunted for food,
B. The cuttlefish got its name from an Old English word.
C. The cuttlefish was valuable to the Romans because it could
produce a brown ink.
O D. The cuttlefish can change its appearance to blend into its
environment.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound