water because it falls out of the sky and it can be found mostly anywhere
Milk is considered a mixture rather than a pure substance because it is composed of different compounds such as water, proteins, fats, and sugars.
Concrete is a mixture, not a pure substance. It is made up of various substances such as cement, water, aggregates (sand, gravel), and additives. Each of these components retains its own properties and can be physically separated from the others.
Magnesium is an element, so it's a pure substance.
For a substance to be pure, it must have no impurities in the substance. Carbonated water is water with carbon dioxide and other substances dissolved in this. Hence, it is not a pure substance.
Milk is not considered an impure substance. It is a natural and nutritious beverage produced by mammals for feeding their young. However, milk can become impure if it is contaminated with harmful bacteria, chemicals, or other foreign substances during processing or storage.
elemental copper
NO
Milk is considered a mixture rather than a pure substance because it is composed of different compounds such as water, proteins, fats, and sugars.
It's a pure substance.
Concrete is a mixture, not a pure substance. It is made up of various substances such as cement, water, aggregates (sand, gravel), and additives. Each of these components retains its own properties and can be physically separated from the others.
mixture
Magnesium is an element, so it's a pure substance.
concrete is a mixture
Mixture
Milk is a complex mixture.
Pure Substance
Buttermilk is not a pure substance; it is a mixture. It typically consists of water, fats, proteins, and various other components, including vitamins and minerals, derived from the fermentation of milk. The composition can vary depending on the method of production and the source of the milk. Therefore, it does not meet the criteria of a pure substance, which has a uniform and definite composition.