a. Draw the Lewis structure for CBr2S (This structure should…

a. Draw the Lewis structure for CBr2S (This structure should be shown on your scratch paper sent to Dr. Metz – show ALL STEPS for this process) b. What is the electron domain number for the central atom in CBr2S ? (This answer must be included in this exam below – on Canvas) c. What is the molecular geometry for CBr2S ? (This answer must be included in this exam below – on Canvas) d. What are the predicted bond angle around the central atom for CBr2S ? If applicable, what impact do the lone pair of electrons or multiple bonds have on the predicted bond angle between the fluorine atoms? (This answer must be included in this exam below – on Canvas) e. What is the hybridization of the central atom in CBr2S ? (This answer must be included in this exam below – on Canvas)

In the reading, “What educated citizens should know about st…

In the reading, “What educated citizens should know about statistics and probability”, Utts argues that several statistical concepts are commonly misunderstood by both the public and even researchers themselves. Choose one of the seven topics mentioned in the article that the author identifies as a source of confusion and describe it in your own words. Then, discuss a potential consequence of this misunderstanding (within a specific scientific discipline or society more broadly). How might scientists (and lifelong students of science like you) be able to reduce misunderstandings of the topic you chose? These are open-ended questions, so feel free to discuss whatever comes to mind while keeping your discussion on topic.

a. Step 1 in constructing a Lewis structure is to calculate…

a. Step 1 in constructing a Lewis structure is to calculate the number of valance electrons available. How many valance electrons are available in the following molecular formula, CO3-2 ? (This answer must be included in this exam below – on Canvas) b. Step 2 in constructing a Lewis structure is to identify the central atom and draw single bonds between the central atom and all non-central atoms. Show the process and resulting intermediate Lewis structure for this step below for CO3-2 . (This intermediate structure should be shown on your scratch paper sent to Dr. Metz) c. How many valence electrons are represented after Step 2 (part b)? How many valance electrons remain to complete the Lewis structure? (This answer must be included in this exam below – on Canvas) d. Step 3 in constructing a Lewis structure is to place nonbonding electron pairs around all non-central atoms to complete their octet. Show the process and resulting intermediate Lewis structure for this step below for CO3-2 . (This intermediate structure should be shown on your scratch paper sent to Dr. Metz) e. How many valence electrons are represented after Step 3 (part c)? How many valance electrons remain to complete the Lewis structure (This answer must be included in this exam below – on Canvas) f. Step 4 in constructing a Lewis structure is to place all remaining valence electrons as nonbonding electron pairs on the central atom. If there are no remaining valence electrons use multiple bonds to complete the octet of the central atom. Show the process and the resulting final Lewis structure for CO3-2 below. (This structure should be shown on your scratch paper sent to Dr. Metz)

All of the questions on this quiz are based on this figure. …

All of the questions on this quiz are based on this figure.  If you can see the figure, you do not need to click on the below link.  If you cannot view the embedded figure below, please click the file name below to open it. It will open in a new browser:  Universe.jpg  This figure shows two panels with the same spiral galaxies labeled A, B, C, D, and E.  The left panel corresponds to a time in the early universe.  The right panel corresponds to the same group of galaxies as viewed at some later time in the evolution of the Universe.   True or False:  All the galaxies in the Early Universe (the left panel) are the same distance from each other.