heterogeneous mixture is two or more unlike substances mixed together. Example would be salt and sugar mixture, or salt and pepper. You can have the same sunstance but in different phases such as water and ice. A substance like milk is said to be homogenous ( the same substance) after homogenization but it is actually a heterogenous mixture of calcium, fat, water and various other substances that don't readily return to its original state.
Sand+salt: a heterogeneous mixture.
Heterogenous mixture
Oxygen is a chemical compound, not a mixture.
Oxygen is a chemical element not a mixture.
A salt is a chemical compound.
Neptunium is a chemical element.
Sugar is a chemical compound.
Sugar is a chemical compound, not a mixture.
hetergeneous
A heterogeneous mixture contains multiple chemical substances combined in a non-uniform way, whereas a pure substance contains molecules with only one chemical identity. For example, salt is a pure substance, whereas a mixture of salt an rocks is a heterogeneous mixture.
No, heterogeneous mixtures do not combine chemically. In a heterogeneous mixture, the substances are physically mixed together but retain their individual properties. There is no chemical bonding between the components of a heterogeneous mixture.
Mercury is a chemical element not a mixture.