General Chemistry

 To hide or display carbon atoms in a carbon chain , click . For help while drawing molecules, click . Grading The circular icons on the right side of the tool indicate what features you are required to draw to answer the question correctly. An open circle indicates that a feature is graded, and a circle with a slash through it indicates that a feature is not graded. For example, in this exercise you are required to show all necessary hydrogen atoms and electron-dot pairs , but you are not required to show the correct isometry or chirality (concepts you will encounter at a later time). You can hover your cursor over each circle in the applet to see the descriptions. Although the molecule you draw must contain the correct atoms and bond structure, the orientation of the molecule is not graded. Try drawing a molecule upside down and you'll see! Part A Draw a sodium formate molecule. The structure has been supplied here for you to copy. To add formal charges, click the button below (which will turn yellow when activated) before clicking on the molecule. Hint A.1 Step-by-step instructions for drawing sodium formate Hint not displayed Hint A.2 Draw an oxygen atom with two electron-dot pairs Hint not displayed Hint A.3 Draw a C atom single-bonded to an H atom and an O atom Hint not displayed Hint A.4 Draw a C atom double-bonded to an O atom Hint not displayed Hint A.5 Draw an Na atom with a positive charge Hint not displayed Draw sodium formate by placing atoms on the grid and connecting them with bonds. Include all lone-pair electrons. ANSWER : View   Correc t Keep in mind that you can refer to this question or consult the Help , if you have difficulty using this answer type later on.   Introduction to Graphing Questions This exercise is not intended to test your knowledge of any specific subject material. Therefore, on this question you will not be penalized for submitting incorrect answers. Overview When an assignment question requires that you answer by plotting a graph, you will see the following buttons:  To add a new graph , click . You will first be prompted to select a label. Then you can add points. (After adding your first point, the tool automatically changes to add points mode.) You can create as many "unlabeled graphs" as you like -- these will not be graded.  To add or edit points on a graph , select or . This button toggles between these two modes. About adding points: Your cursor appears as a crosshair with coordinates next to it. To add a point, click a location. To add multiple points at a time, click and drag your mouse. About editing a graph: Using a mouse : To move a point, click to select the point and then drag it to the new location. To move the entire graph to a new location, click between points on the

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