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Download this. Developing understanding worksheet, for age range 14–16. A ramped worksheet to help learners develop their mental models of carbon allotropes. With icons to indicate the conceptual level/s of each question. Answers and guidance are found in the teacher notes. Download All.
C is the basis of the structure: organic molecules contain chains and rings of carbon atoms • carbon atoms are not shown and are assumed to be at intersections and at the ends of lines • C – H bonds are omitted: the number of missing H atoms can be worked out by remembering
In example C, the carbon is double bonded to oxygen and single bonded to another oxygen. Notice how COOH means C(=O)-O-H instead of CH 3-C-O-O-H because carbon does not have a complete octet and oxygens.
1. How many bonds does carbon typically make? Draw a molecule composed of only C and H with exactly two C atoms and some number of H atoms in which both C and H are making their typical number of bonds. 2. Nitrogen typically forms three bonds. Given that each bond involves two electrons, and nitrogen obeys
structural formulas, i.e., they are different in the order in which different atoms are linked. In these compounds, carbon atoms can be linked together in the form of straight chains, branched chains or even rings.
Drawing every bond and every atom is tedious, however, so chemists have devised several shorthand ways for writing structures. In condensed structures, carbon–hydrogen and carbon–carbon single bonds aren’t shown; instead, they’re understood.
Unit 4 Chemistry of Carbon. Organic Chemistry studies the compounds of the element carbon. In many of these compounds carbon is found bonded to. Hydrogen, oxygen, nitrogen, phosphorous, sulfur, and halogens.
