Calculate the amount of solute excess out when the 60 gm of saturated solution of NH4Cl having solubility of 57 at 60 ℃ is cooled to 20 ℃ , the solubility being 35.

Which of these conditions most likely produces an unstable isotope?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What is the effect of returning nuclear reactor cooling water back into bodies of water?