Author: StopLearn Team 2

Fractions of Crude oil

Petroleum gases – These gases are liberated at the top of the column at temperatures below 40o They are mainly […]

Crude Oil Crude oil or Petroleum is the chief source of hydrocarbons. Petroleum which means rock oil in Latin occurs […]

Molecular Polarity In chemical bonds, polarity refers to an uneven distribution of electron pairs between the two bonded atoms—in this […]

Molecular Shape While Lewis dot structures can tell us how the atoms in molecules are bonded to each other, they […]

Properties of Giant Covalent Structures Very high melting points – Substances with giant covalent structures have very high melting points, […]

Polar and non-polar molecules Chemical bonding is the result of either an atom sharing one or more outer orbit electrons […]

Radioactivity tracers are commonly used in the medical field and also in the study of plants and animals. Radiation is […]

Radioactive decay is the spontaneous radioactive disintegration of an atomic nucleus, resulting in the release of energy. Some atoms are […]

Diffusion Cloud Chamber The Diffusion Cloud Chamber is used to view high energy alpha particles, lower energy beta particles, and […]

Antoine Henri Becquerel, a French scientist, 1896, was conducting an experiment which started with the exposure of a uranium-bearing crystal […]