Write out the Keq expression and calculate the Keq of the reaction CH4 + O2 ⇌ CO2 + 2H2O, given the following concentrations at equilibrium: [CH4] = 0.37M [O2] = 0.25M [CO2] = 0.86M [H2O] = 0.44M

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.