Which words or phrases describe the outer planets? check all that apply.

2. gaseous

4. low density

explanation:

the outer planets are the four planets in the outer part of the solar system. they are much larger than the inner planets. these planets are mostly made out of gasses, such as hydrogen, helium, methane, and so they have lower density than the inner planets which are mostly made of metals. since these planets are made out of gases, and their temperatures are very low, they have gasses that are in liquid form. they are not completely made out of gasses though, but instead they have some rocky parts in their core, with neptune and uranus having larger portion of rocks than saturn and jupiter.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.