What is the relationship between a mole and avogadro's number?
o amole is the mass of avogadro's number of particles of a substance.
o a mole is the amount of a compound that has avogadro's number of carbon-12 atoms in it.
o amole contains avogadro's number of particles of a substance.
o amole is the amount of any substance that has the same mass as avogadro's number of carbon-12 atoms.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.