Which type of atom is expected in the reactants of this chemical reaction? ? fe2o3 a. iron (fe) b. gold (au) c. nitrogen (n) d. chlorine (cl)

When a scientific theory has been tested and proved by the scientific community, it becomes a law

How is the atomic number of a nucleus changed by alpha decay

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?