If a solute dissolves in an endothermic process select one: a. hydrogen bonds must exist between solvent and solute. b. strong ion-dipole forces must exist in the solution. c. the solute must be a gas. d. the entropy of the solution is immaterial. e. the entropy of the solution must be greater than that of its pure components.
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Use the gizmo to find the concentration of the mystery ch3cooh. use the titrant and indicator shown below perform the titration. what is the titrant volume? titrant analyte indicator titrant volume analyte concentration naoh ch3cooh phenophthalein select one: a. 20.0 ml b. 27.0 ml c. 30.0 ml d. 24.0 ml
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Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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If a solute dissolves in an endothermic process select one: a. hydrogen bonds must exist between so...
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