.130 g sample of an unknown metal x reacted with hydrochloride acid according to the following chemical equation. The volume of hydrogen gas collected over water was 92.0 mL at 20 C and 763 mmHg. Calculate the atomic mass of unknown metal and identify the metal from the periodic table

The answer to the question above is the second option: Spiral and irregular galaxies have gas and dust between stars while elliptical galaxies do not. This is the statement that is TRUE. Spiral, irregular, and elliptical galaxies are the three types of galaxies present in the universe. The best example of a spiral galaxy is Milky Way. This type has gas and dust between stars and this shows that there are still emerging and young stars. This is the same with irregular galaxy, but their only difference is the shape. For elliptical galaxies, they have no disk and there are no gas and dust present. Thus, these only consist old stars.