Nitrogen can exist as a solid, a liquid, or a gas. Which of the following lists the phases of nitrogen in order of increasing density? gas, liquid, solid gas, solid, liquid liquid, gas, solid solid, liquid, gas

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

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.

All forces cause motion? true or false