What distinguishes physical properties from chemical properties

What happens when light is scattered?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions