A homogeneous mixture is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture. The composition of the mixture is the same throughout. There is only one phase of matter observed in a homogeneous mixture.

Examples Air ,Sugar ,water ,Rain water ,Vodka ,Vinegar, Dishwashing detergent ,Steel .

You can't pick out components of a homogeneous mixture or use a simple mechanical means to separate them. You can't see individual chemicals or ingredients in this type of mixture.

An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved due to the action of internal friction. In collisions of macroscopic bodies, all kinetic energy is turned into vibrational energy of the atoms, causing a heating effect, and the bodies are deformed.

In an inelastic collision kinetic energy is lost (generally through energy used to change an objects shape), but the two objects rebound off each other with the remaining kinetic energy.Momentum is conserved in inelastic collisions, but one cannot track the kinetic energy through the collision since some of it is converted to other forms of energy.

In a perfectly inelastic collision the two objects stick together after the collision.A perfectly inelastic collision occurs when the maximum amount of kinetic energy of a system is lost. In a perfectly inelastic collision, i.e., a zero coefficient of restitution, the colliding particles stick together. In such a collision, kinetic energy is lost by bonding the two bodies together.

weather

Chromatography is a versatile separation technique widely used to obtain pure compounds from mixtures. All chromatographic techniques depend on a stationary phase, usually a finely divided solid or coated solid, that a mobile phase, usually a gas or liquid, moves through.

<a data-ved="0ahUKEwiZ_oXOy4HWAhXLu48KHUyRABkQ9QEIKTAA" href="https://www.google.co.in/imgres?imgurl=https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Preparative_HPLC.svg/400px-Preparative_HPLC.svg.png&imgrefurl=https://en.wikipedia.org/wiki/Chromatography&h=213&w=400&tbnid=hAg_00cSuCxF5M:&tbnh=112&tbnw=211&usg=__AIFk95IYpBPK4H7keofS0d12Vk8=&vet=1&docid=d6zkvX2IT-mgcM&sa=X&ved=0ahUKEwiZ_oXOy4HWAhXLu48KHUyRABkQ9QEIKTAA" id="hAg_00cSuCxF5M:" jsaction="fire.ivg_o" role="link" tabindex="0" tag="bia"></a>

Chromatography is a physical method of separation that distributes components to separate between two phases, one stationary (stationary phase), the other (the mobile phase) moving in a definite direction. The eluate is the mobile phase leaving the column.

{tex}\sqrt {x+15}+\sqrt x = 15 {/tex}

{tex}=> \sqrt {x+15} = 15- \sqrt x {/tex}

squaring both sides, we get 

{tex}=> x+15 = 225 + x + 30\sqrt x{/tex}

{tex}=> 30\sqrt x = 210{/tex}

{tex}=> \sqrt x = 7{/tex}

squaring both sides, we get

{tex}=> x = 49 {/tex}

A substance from which something is made or can be made is called Material.

E.g.: Paper, Plastic etc...

 The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecularsystems is called Chemistry.