Yes. All matter on Mercury is made up of chemicals.
Mercury
No, Mercury is the closest planet to our sun
Mercury is a planet itself, and it does not have any planets to it.
Mercury does not have any moons.
Mercury, the planet, does not have any relationships that I am aware of.
mercury
No... ?
No. Mercury orbits the sun, so it is a planet rather than a moon.
Mercury is an inner planet. It does not have any moons.
No, Mercury barely even has an atmosphere.
No, Mercury does not have a twin planet. It is the smallest and innermost planet in our solar system, and there is no other planet that is exactly like Mercury in terms of its size, composition, and distance from the Sun.