A 63.9 g sample of benzene, C6H6 (molar mass = 78.11 g/mol), is at 14.0 °C. If 25.00 kJ of energy flows into this sample, what phase(s) of benzene will be present, and what will the
temperature be? Benzene's melting point is 6.00 °C and its boiling point is 80.0 °C.

An engineering team designs a new rocket that is faster and lighter than any other model being produced. however, the materials end up being so expensive that no company can afford to buy them. which step of the engineering process should have addressed this problem? a. know the background. b. evaluate the results. c. identify a need. d. do the work.

__ _ _ _ _ is the process of removing earth materials from their original sites through weathering and transport and depositing the in another location. a. erosion b. sedimentation c. lithification d. dissolution

Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.