YuzheJun 22, 2017Maths skill in GMAT/GREMost geometry problems on the test require straightforward calculations. However, some problems measure your insight into the basic rules...
YuzheJun 20, 2017Types of molecules with polar bonds but no resulting dipole momentThere are many cases besides that of carbon dioxide where the bond polarities op- pose and exactly cancel each other. Some common types...
YuzheJun 20, 2017Bond polarity and dipole moments(a) The charge distribution in the water molecule. (b) The water molecule in an electric field. (c) The electrostatic potential diagram...
YuzheJun 15, 2017Characteristics of circleWe should distinguish the difference between a central angle and an inscribed angle. #GREMaths #GMATMaths