A(n) is a homogeneous mixture of particles so small they cannot be seen without microscopes and will never settle to the bottom of their container. question 18 options: solution element molecule plasma

A(a) solution is a homogeneous mixture of particles so small they cannot be seen without microscopes and will never settle to the bottom of their container .

A) Solution

Explanation  

A solution contains two components- a solute that exists in solid-state and a solvent that exist in liquid state.

When the solute and solvent are combined in certain conditions( temperature or pressure) a solution is formed.

A solution can be uniform or homogeneous and non-uniform or heterogeneous.

Examples of a uniform homogeneous solution are salt in water and heterogeneous mixture is sand in water.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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