Given the following equation: 2C6H6 + 15O2 = 12CO2 +6H2O , how many moles of O2 are are needed to react with 4.0 moles of C6H6?

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas

Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost