Textbook QuestionWhich of the following is a hydrophobic material? a. paper b. table salt c. wax d. sugar863views
Textbook QuestionCreate a concept map to organize your understanding of the life-supporting properties of water. A sample map is in the answer section, but the value of this exercise is in the thinking and integrating you must do to create your own map.878views
Textbook QuestionDRAW IT Draw the hydration shells that form around a potassium ion and a chloride ion when potassium chloride (KCl) dissolves in water. Label the positive, negative, and partial charges on the atoms.1863views
Textbook QuestionMost of the unique properties of water result from the fact that water molecules a. are the most abundant molecules on Earth's surface. b. are held together by covalent bonds. c. are constantly in motion. d. are polar and form hydrogen bonds.958views
Textbook QuestionWhat do you think the effect on the properties of water would be if oxygen and hydrogen had equal electronegativity?650views
Multiple ChoiceA solution in which water is the solvent is called a(n) _______________ solution.2325views17rank
Multiple ChoiceWhat is the charge of the solute molecule in the image below based on the polarity of water?3234views26rank
Multiple ChoiceThe components of a heterogenous solution are ________________ distributed throughout.1842views16rank
Multiple ChoiceHow does the polarity of water contribute to its ability to dissolve so many substances? 4703views2rank
Multiple ChoiceSucrose has a molecular mass of 342 daltons. To make a 2-molar (2 M) solution of sucrose, __________. 1596views
Multiple ChoiceA mole of ethyl alcohol weighs 46 g. How many grams of ethyl alcohol are needed to produce 1 L of a 2-millimolar (2 mM) solution? 1055views