22.22 Chromium oxidation can also be used as a chemical test to indicate the presence of an aldehyde. During the course of the reaction, a color change occurs, with the reaction turning from a red color to a green. What is likely the reason for the color change

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?