Gold Earrings

Gold earrings are categorized as a element because Gold (AU) is a element on the periodic table.

Salt is homogeneous only if it is not dissolved in anything.

Soda is a homogeneous substance because it is flat and is no longer carbonated.

Liquid soap is a heterogeneous substance because in one squirt of soap may have more little cleansing beads than the other one.

Salt in water is a heterogeneous substance if you do not stir it because you can still see the salt crystal. Also you can distinguish between the two in a cup.

Water is a compound because hydrogen and oxygen mix together to form H20.

Bleach is a compound because it has Sodium hypochlorite (NaOCl) thus making it a compound.

Water and pepper is a mixture because water and pepper mixed up together still retain its property and identity. 

Ice cream with sprinkles is a mixture because adding sprinkles does not change any of its chemical properties and you still have the same substance.