List 4 methods that can be used to separate mixtures and physical properties that are used when using each method.
this is for my homework! !

Well you could sort it out based on color you could stain and that uses size you could get a magnet if you want to seperate out iron or something which uses electro magnetism and if it is a liquid you could let it stand till it seperates using density

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

What’s the question