Construct a model in which a tetrahedral (sp3) carbon atom (black) has four different model atoms attached to it. Use the light blue, red, blue, and green polyhedrons [or whatever shapes or colors they are in your model kit] to represent four different atoms or groups attached to the central atom (black). Does the model have a plane of symmetry

how to make a simple air condition

a) the particles of the chair are strongly held together.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.