Amole of the element u (uranium) and a mole of co2:

have the same molecular weight
have the same atomic mass
have an equal number of particles
have an equal number of atoms

The correct answer is they have same number of particles.

Explanation:

According to mole concept:

1 mole of an element or compound contains  number of particles.

The number is known as Avogadro's number.

We are given:

One mole of uranium element and 1 mole of carbon dioxide molecule.

These two substances have same number of particles equal to Avogadro's number.

Hence, the correct answer is they have same number of particles.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

the answer is d. 74.02