10. (SPS9a) List the colors of the visible light spectrum (abbreviate the colors with no space in between them, use all caps ex. ABCDEF. What makes seeing these colors possible? Give an example. (8 pts.)

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

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?