Look at the grade page to see how you did on the pretest.

Here are the correct answers for pre test questions 4 & 5

71) b 72) d 72)c 74)b 75)d 76)a 77)d 78)c 79)d 80)c 81)a 82)b 83)a 84)b 85)a 86)b 87)b 88)a 89)d 90)d 91)a 92)c 93)c 94)d 95)d
96) d 97)d 98)c 99)d 100)a

The most missed were .....
86 - increasing the vol is the correct answer, that would cause fewer collisions thus slowing the reaction.
90 - equlibrium occurs when the forward and reverse reaction happen at the same rates. The number of molecules is not always the same.
96- The problem is describing absolute zero--- 0 K or -273 C
99 - This is an acid base neutralization reaction. Water and salt are the products.