Dissolving oxygen in water releases a small amount of heat. What is the effect of cooling a water/oxygen solution? A) More oxygen dissolves in the water. B) Less oxygen dissolves in the water. C) There is no effect. D) There is not enough information provided to reach a conclusion.

A saturated solution of a compound contains .15g of solute in 100 g of water.  Is a second solution containing .05 g of solute dissolved in 25 g of water unsaturated, saturated, or supersaturated?

Match the following terms to their definitions: Aqueous solution, cation, centrifuge, decant, flame test, precipitate, qualitative analysis, supernate A solution of one (or more) substances dissolved in water is called .... ? Group of answer choices Precipitate Cation Centrifuge Flame Test Decant Qualitative Analysis Supernate Aqueous Solution

Give typed explanation

What occurs in solvation?      a.a non-polar substance is formed b.ions are surrounded by the oppositely charged end of water molecules c.water molecules repel ions d.ions conduct electricity

2. A) Supersaturated solutions can hold less solute than they should be able to at room temperature.   a) True   b) False   B.  Insoluble solutions are overserved when the solute and the solvent have the same intermolecular forces   a) True   b) False C.  Solutions with high amounts of solute per amount of solution are said to be concentrated   a) True   b) False D.  When comparing single, double and triple bonds; single bonds are the longest and weakest covalent bonds   a) True   b) False E.  If the mass of the solute (KNO3) in a solution is 22.5g and the total volume of the solution is 125 ml. What's the concentration (M) of this aqueous solution?   a)  1.78M   b)  0.00178 M   c)  0.027 M   d)  0.22 M

How many moles of solute are there in the following solutions?   1.75×10-1  m glucose solution made by dissolving the glucose in 100.0 kg of water:     ..................... mol   2.25×10-2  m Na2CrO4 solution made by dissolving the Na2CrO4 in 1000.0 g of water:      .................. mol   1.75×10-1  m urea solution made by dissolving the urea in 500.0 g of water:      .................. mol

Which of the following characteristics describes water’s ability to act as nature’s solvent?   A. The polar nature of water molecules attracts hydrophobic compounds, encouraging dissolution.   B. The nonpolar nature of water molecules allows polar substances to dissolve easily in water.   C. The polar nature of water molecules repels hydrophilic compounds, preventing dissolution.   D. The polar nature of water molecules allows other polar and ionic substances to dissolve easily in water.

38) A solution is prepared by dissolving 15 g of NaOH in 150 g of H2O. In this solution, H2O is the A) solute. B) solvent. C) solution. D) solid. E) ionic compound.

Which letter for sodium iodine