About 4. the weight of He is about 4 amus and the weight of O is about 16 amus, so you would need 4 He atoms to get close to the same mass as an O atom. i hope this helps
A: gain 2 ions
B: +2
C: Cation
What is true in a saturated solution is that it cannot dissolve any more solute.
A saturated solution is a chemical solution that contains the highest concentration (maximum capacity) of a solute dissolved in the solvent. When additional solute is added to a saturated solution, it will not dissolve it but it may result in a solid precipitate or left as a gas. The saturation of a solution depends on various factors such as temperatures, pressure, and the chemical makeup of substances involved. Examples of saturated solutions include; carbonated water and mixture of sugar and vinegar.