Author: Anonymous

Which step is the rate determining step?

What type of reaction is the reaction below?  

The image below refers to what type of slope failure?

Identify the following functional groups(s).

A group of nine college students were asked how many hours they slept the previous night. The number of hours they slept are:      7     6     7.25     8.5     5      7      6.75     6    9 [a].  Find the mean.  Round to two decimal places. [b].  Find the median.  Round to two decimal places.    [c].  The standard deviation of the hours slept is 1.24 hours. What is the z-score for the student who slept 7 hours?  Round to two decimal places.      

In a particular suburb, 30% of the households have installed electronic security systems.  If a household is selected at random, what is the probability that this household has not installed a security system? 

The time-dependent deformation of clayey soil is explained using a classic model of a water filled cylinder with a spring at its center. In this example, the spring represents what element of the three-phase model?

Is the reaction represented by the energy diagram below exothermic or endothermic?  

The blows per six inches for an SPT test results are reported by your drillers as follows: (A) 50/3″, WOH (B) WOH, 50/3″ (C) 49, 48, WOH (D) 36, WOH You immediately note that one of the SPT N values reported is incorrect. That incorrect SPT N value is A, B, C or D?

Two data sets yield the following standard deviations.  Which data set is more consistent?   Data set 1:  standard deviation = 5.2                       Data set 2:  standard deviation = 6.1