Propane is a compound since it is composed of different elements. Compounds are pure substances formed from the combination of different elements. Propane is composed of 3 atoms of carbon and 8 atoms of hydrogen.

Pure substances can be either elements or compounds. Gasoline is thus a blend of different compounds, so it is a mixture.

Differences Between Pure Substances and Mixtures

A pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample. Mixtures are physical combinations of two or more elements and/or compounds. Mixtures can be classified as homogeneous or heterogeneous.

The best examples of pure substances are pure elements, molecules, and compounds:

• Hydrogen gas.
• Gold metal.
• Sugar (sucrose)
• Baking soda (sodium bicarbonate)
• Ammonia.
• Diamond.
• Copper wire.
• Silicon chip.

Mixtures can be classified on the basis of particle size into three different types: solutions, suspensions, and colloids. The components of a mixture retain their own physical properties. These properties can be used to separate the components by filtering, boiling, or other physical processes.

Toothpaste is a mixture of powdered solids and various liquids, so it’s neither a liquid nor a solid. Chemists would argue that toothpaste is a colloid (like milk or ink): a mixture where tiny particles of one substance are dispersed evenly into another without separating out.

MIXTURES? together. Four to be specific, called SOLUTIONS, SUSPENSIONS, COLLOIDS and EMULSIONS.

(a)Urine is a homogeneous mixture.

Normal urine It is homogeneous because it has the same composition throughout.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers. Each of the layers is called a phase.

Liquid Homogeneous Mixture Examples Blood plasma – the colorless fluid that holds your blood cells in suspension; it makes up a little more than half of the volume of human blood; Blood itself appears homogeneous, but the cells and the plasma can be easily separated, making it heterogeneous.

A Tea is a solution of compounds in water, so it is not chemically pure. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture.

A homogenous mixture is when a mixture looks the same all around. It is completely blended. An example of a homogenous mixture is cranberry juice and water.

Salad dressing can be a homogeneous mixture or a heterogeneous mixture based on the type of salad dressing it is.

Since propane, is made up of two different elements that is carbon, and hydrogen, . There are 3 carbon and 8 hydrogen atoms present in the propane molecule. So, it is a compound.

Consider gasoline. It is certainly homogeneous and seems a likely candidate for a compound, meaning that it would have a fixed composition. However, as you may know, gasoline can be purchased at a station in a variety of grades, such as regular or premium grade.

Because propane is made up only of carbon and hydrogen — the chemical formula is C3H8 — it’s an organic compound. It’s also a paraffin hydrocarbon, similar to ethane or methane.

Hence, air is made up of various gases such as 78.09 Nitrogen, 20.95 oxygen, 0.93 argon,0.04 carbon dioxide and water vapors. But they all are in single phase. Therefore, the answer is Homogenous mixture.

Saltwater is a homogeneous mixture, or a solution. Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture. Water is a substance; more specifically, because water is composed of hydrogen and oxygen, it is a compound.

Vinegar is an example of a homogeneous mixture, and not a pure substance since water, its solute, is dissolved in the solvent, being acetic acid.

Blood is heterogenous as the blood cells are physically seperated from the plasma.

You pour the coffee in your cup, add milk, add sugar, and stir everything together. The result is a uniform cup of caffeinated goodness. Each sip should taste and look the same. This is an example of a homogeneous mixture.

Homogeneous mixtures are mixtures that are completely mixed where you cannot see any separate parts. This would include stuff like Gatorade, water, coffee, and paint. Heterogeneous mixtures are mixtures that are uneven and you can see individual parts.

a pizza is an example of a heterogeneous mixture.

Difference between Homogeneous and Heterogeneous Mixture

the apple juice which we get in supermarkets and stores is a homogeneous mixture , as, it does not show the ‘Tyndall Effect’, the particles of apple do not settle down when left undisturbed for a while, there is no visible separation of particles in it, so the particle size is less than 1nm and finally it does not get …

Is hot tea a mixture? Tea is a homogeneous mixture as its composition is the same throughout. If you take one spoon of the solution and compare it to two spoons of the same solution, the composition will be the same. Also, the different components which make up a cup of tea cannot be observed individually.

Wood, as you may know., is a heterogeneous mixture. But why? It is because all the elements and compounds in a piece of wood are not mixed evenly throughout the wood. One sample of wood may have more water/oxygen than another area, or one sample may have some tree sap, while another may not.

Whole milk is actually a heterogeneous mixture composed of globules of fat and protein dispersed in water. Homogeneous mixuters are those in which the components are evenly distributed over the major component/constitute of the mixture.

Because its composition is not uniform throughout, orange juice is a heterogeneous mixture.

The homogeneous goods are perfect substitutes for each other and are generally sold in perfect competition. For example in commodities market vegetables, fruits, grains, oil, metals and energy goods are homogeneous goods. The buyers purchase doesn’t depend much upon the product as all are similar but more on the price.

Homogenous products are considered to be homogenous when they are perfect substitutes and buyers perceive no actual or real differences between the products offered by different firms. Price is the single most important dimension along which firms producing homogenous products compete.

Feature Milk is a uniform and homogeneous product. It is not possible to make a distinction between the milk of one farm and another. One individual farmer is thus unable to affect the price of milk in the entire market.