Teachers. About Us. Contact Us. There are three types of rock. 1. Igneous: these are rocks that solidified directly from molten silicates, which geologists call magma. Examples are: granite, basalt, pumice and flint (which is a form of quartz).2.eachers. About Us. Contact Us. There are three types of rock. 1. Igneous: these are rocks that solidified directly from molten silicates, which geologists call magma. Examples are: granite, basalt, pumice and flint (which is a form of quartz).
Phosphorus trichloride is a chemical compound of phosphorus and chlorine, having the chemical formula PCl3. It has a trigonal pyramidal shape. It is the most important of the three phosphorus chlorides.
Transcript: This is the Lewis structure for CH2Cl2. We have a total of 20 valence electrons for CH2Cl2. Carbon is less electronegative than Chlorine, so it'll go on the inside, and Hydrogens always go on the outside.Put our Hydrogens here, and then our Chlorines.e have a total of 20 valence electrons for CH2Cl2. Carbon is less electronegative than Chlorine, so it'll go on the inside, and Hydrogens always go on the outside.