Which statement is true for a system in chemical equilibrium? Mark all that apply. 1 The forward reaction is happening more quickly than the reverse reaction.
2 The reaction is not reversible.
3 The reverse reaction is happening more quickly than the forward reaction.
4 The reaction is reversible.
5 The forward reaction is happening at the same rate as the reverse reaction.
6 All reactants are turned into products and the reaction stops.

When the water vapor cools it condenses select a number that represents his process on the

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

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.