Answer: Rb gains two electrons
Explanation:
Weight is the force of gravity on an object. Weight depends on the strength of the gravitational field the object is in and the mass of the object. ... Mass is constant anywhere in the universe, whereas weight depends on the gravity where the object is present (Earth, the moon, Jupiter, etc.).
The answer I’m pretty sure is c) the upper mantle
They all consist of Hydroxide particles (OH)
and they produce hydroxide ions (OH-) when placed in water/aqueous solution.