which of the following observations would indicate that a material is a pure substance?\nit does not…

which of the following observations would indicate that a material is a pure substance?\nit does not dissolve in water.\nit changes color after heating.\nit cannot be physically broken down into different types of atoms.\nit can be physically broken down into different types of molecules.

which of the following observations would indicate that a material is a pure substance?\nit does not dissolve in water.\nit changes color after heating.\nit cannot be physically broken down into different types of atoms.\nit can be physically broken down into different types of molecules.

Answer

Brief Explanations:

A pure substance is made up of only one - type of atom or molecule and cannot be physically broken down into different types of atoms. Not dissolving in water or changing color after heating are not definitive indicators of a pure substance. Being able to be physically broken down into different types of molecules indicates a mixture.

Answer:

It cannot be physically broken down into different types of atoms.