Urea has a high solubility in water, due in part to its ability to form hydrogen bonds. A urea molecule and four water molecules are represnted in the box below. Draw ONE dashed line to indicate a possible location of a hydrogen bond between a water molecule and the urea molecule.

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

The mass of a proton is approximately equal to the mass of

Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations