Consider the following reaction at equilibrium. what effect will reducing the volume of the reaction mixture have on the system? xe(g) + 2 f2(g) ⇌ xef4(g) a) the equilibrium constant will decrease. b) no effect will be observed. c) the reaction will shift to the right in the direction of products. d) the equilibrium constant will increase e) the reaction will shift to the left in the direction of reactants.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Which change to the system wood cause the freely-moving piston to lower?

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?