In the Lewis structure for ICl2–, how many lone pairs of electrons are around the central iodine atom?

Is the following molecule polar or nonpolar?  

A solution is prepared from 64.4 g of a nonvolatile, non-dissociating solute and 85.0 g of water. The vapor pressure of the solution at 60°C is 132 torr. The vapor pressure of water at 60°C is 150. torr. What is the molar mass of the solute? STATE JUST YOUR ANSWER INCLUDING UNITS IN THE TEXT BOX BELOW. Do not show work in the text box.  # your question on scratch paper and label answer,  Include units   If your number is in scientific notation use the superscript or subscript buttons in the task button up in the task bar above. Show all work or receive no credit Show work to webcam upon completion of this problem.  Show units and chemical name or formulas if applicable.   Spelling counts.  Sig Figs will not count unless otherwise stated.  You will be asked to scan all your work at the end of the exam.

Consider the reaction, which is exothermic as written, PCl5(g)  PCl3(g) + Cl2(g).  Which direction will the reaction shift in order to reach equilibrium again?  Use arrows to denote right of left  —–>     or   

The rate constant for a reaction at 40.0°C is exactly 3 times that at 20.0°C. Calculate the Arrhenius energy of activation (kJ/mol) for the reaction. STATE JUST YOUR ANSWER INCLUDING UNITS IN THE TEXT BOX BELOW. Do not show work in the text box.  # your question on scratch paper and label answer,  Include units   If your number is in scientific notation use the superscript or subscript buttons in the task button up in the task bar above. Show all work or receive no credit Show work to webcam upon completion of this problem.  Show units and chemical name or formulas if applicable.   Spelling counts.  Sig Figs will not count unless otherwise stated.  You will be asked to scan all your work at the end of the exam.

Question #1 on the exam will be a link to the periodic table sheets.  Click on link to open the sheets. Do not write an answer for this question.  The exam will tell you that you have missed answering 1 question – ignore it.   https://drive.google.com/file/d/1wH2hYr7MAJyRv4HGxA5Ek6PI5N-VOSkJ/view To toggle between the exam and the periodic table sheets, CTRL key 1 to open exam page, CTRL 2 to open periodic table pages.      The exam will tell you that you have forgotten to answer question #1.  Please ignore the alert.  Question #1 is worth 0 points. Go to questions 30-38 the SHOW WORK problems FIRST and do those problems first because you can get partial credit.  

Wordbank – Stratum basale; Stratum granulosum; Stratum lucidum; Stratum spinosum; Stratum corneum.   10A – Name the layer of epidermis labelled “10A” – 10B – Name the protein that gives this layer it’s characteristic appearance. –

Wordbank – Adipose Tissue; Cuboidal Epithelium; Stratified Squamous Epithelium; Skeletal Muscle; Cardiac Muscle; Smooth Muscle; Aereolar Connective Tissue; Bone Tissue; Hyaline Cartilage; Pseudostratified Epithelium 8A – Identify the tissue shown above. – 8B – Name a location in the body. –

Wordbank – Interphase; Prophase; Early prometaphase; Later prometaphase; Metaphase; Early anaphase; Later anaphase; Telophase; Cytokinesis   4A – Arrange the figures above in the correct order. – 4B – How do differentiate Telophase from other phases of mitosis  –

Wordbank – Scapula; Sternum; Coastal cartilage; Clavicle; Ribs; Cervical vertebra.     12A – Name the bone labelled “12A” – 12B – Identify one bone that this bone articulates with. –