Which of the following substances is a solution? solid sodium false chlorine gas false table salt false saltwater true false 0 Single 0 Why would mixing magnetite sand, Fe3O4, with water not produce a solution? You will produce a compound instead, Fe2(OH)3. false The sand can still be physically separated by filters. true Sand is denser than water. false The intermolecular forces of magnetite repel water. false false 0 Single 0 Which of the following objects is a heterogeneous mixture that also contains compounds? Pizza true Diamond false Oxygen and helium gas in a balloon false Marble rock false false 0 Single 0 An example of a solution with solid solute and a solid solvent is: chalk false wood false gold-mercury amalgam false stainless steel true false 0 Single 0 What term is used to refer to the inherent quantity of disorder in a system? exothermy false enmity false entropy true enthalpy false false 0 Single 0 Which of the following solutions has the highest concentration? 1 L solution containing 0.1 mol solute false 0.1 L solution containing 1 mol solute true 0.1 L solution containing 0.1 mol solute false 1 L solution containing 1 mol solute false false 0 Single 0 The SI unit of molality is: mol/L false L/mol false mol/kg true kg/mol false false 0 Single 0 Assuming all other conditions are equal, the solubility of a substance usually: increases with IMF strength false increases with temperature true increases with amount of solute false increases with amount of solvent false false 0 Single 0 Which of the following is evidence that lava is a solution, not a mixture? Gases escape from lava as it reaches lower pressures on the surface true Lava tends to dissolve rock because of its high temperature false You'll have to wait for it to cool down before you can separate its components false Solidified lava can be molten again to separate its components false false 0 Single 0 The last of the three steps of the dissolution process involves: solvent-solute interaction true solvent-solvent interaction false solute-solute interaction false zero heat transfer false false 0 Single 0