CHEM 131 Final Exam APU | Page 2

10 . A liquid generally wants to decrease the area of its surface as much as possible . The natural tendency to do this is known as what ?
11 . When you put water into an ice cube tray and stick it in the freezer to make ice , which of these is true ?
12 . Most people don ' t realize that once something starts to melt , cranking up the heat does ' t make the temperature of the substance higher , at least not until it is ALL melted . When you add lots of extra heat to a solid that is in the process of melting , what ends up happening to all of this extra energy you are adding ? It is used to do what ?
13 . ' Which of these statements is true regarding a gas ' s ability to dissolve in water ? It
14 . ' Suppose you have a 0.10 M solution of AlBr​ 3​ . What is the concentration of each ion
15 . Suppose you want to prepare a 2.50 M solution of sodium chloride . If you only have 0.325 moles of sodium chloride , and you must use it all , how many mL must you prepare ?
16 . Suppose you have a sample of HC​ 2​ H​ 3​ O​ 2​ with a concentration of 2.0 M . So , what would be the [ H​ + ​ ]?
17 . We discussed many properties and characteristics of acids in this lesson . Which of the following is NOT one that was mentioned ?
18 . In this lesson we learned about K​ w​ , which is known as the the ion product constant for water . What is this value ?
19 . We discussed several different types of hydrocarbons in this lesson . Which one is saturated ?
20 . We discussed different types of organic reactions in this lesson , one of which was addition . Which if these will undergo this type of reaction ?
21 . Endings ( suffixes ) in the naming process can tell us a lot about a chemical . For example , a compound named " butanal " would be categorized as a ( n ):