Why would a doctor most likely restrict a patient’s contact with other people while the patient receives internal radiation?

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction