(SLO #4) Consider the following sequence of events:   A…

(SLO #4) Consider the following sequence of events:   A sample of mercury(II) oxide was heated to produce mercury metal and oxygen gas. The liquid mercury was then cooled to -40°C, where it solidified. A glowing wooden splint was thrust into the oxygen, and the splint burst into flame. Identify the physical and chemical changes that have taken place.

A new coffee shop is opening soon. The newly hired manager n…

A new coffee shop is opening soon. The newly hired manager noted the default cup order included the same number of each size of cup. She is skeptical that the sizes will be ordered in equal numbers, so she tracks the orders on opening day and wants to compare them to the default assumption of an even distribution so that even if things don’t perfectly follow the first day pattern, at least she start to adjust future supply orders so the store will be better stocked. Orders at the Coffee Shop, Week 1 Size Number Ordered Small 87 Medium 135 Large 165 Extra Large 93 Total 480 Select the most appropriate null and research hypotheses for a chi-square goodness of fit test of these data.