Draw the structure of the compound C4H6O that exhibits the 13C-NMR spectrum and DEPT data below. Impurity peaks are omitted from the DEPT data list. The triplet at 77 ppm is CDCl3.Shift Dept 90 Dept 135194.7 + +146.0 0 0134.4 + - 14.0 0 ++ Positive peak- Negative peak0 No peak

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .