Do ALL molecules or atoms in a substance have the same amount of kinetic energy at a given temperature?

What is the mass of 8 moles of sodium atoms

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

Hno2 + caco3 = h2co3 + ca(no2) can someone balance this