Which statement best describes a solution?

1.a mixture consisting of minute particles suspended in a medium that start moving about as soon as the mixing process stops

2.a mixture consisting of larger particles suspended in a medium that start settling down as soon as the mixing process stops

3.a mixture having a uniform composition where the components can't be seen separately and all components are in the same state

4.a mixture having a uniform composition but the components can be seen separately and all components are in a different state

Option (3) is the correct answer.

Explanation:

A solution is defined as a homogeneous mixture in which solute particles are evenly distributed into the solvent.

A solution is a clear solution whose particles cannot be separated out as they are all present in same state.

On the other hand, a mixture in which particles are unevenly distributed into the solvent is known as a heterogeneous mixture.

For example, sand in water is a heterogeneous mixture.

Particles of a heterogeneous mixture can be separated out generally through filtration. This is because these particles are not present in same state.

Thus, we can conclude that the statement a mixture having a uniform composition where the components can't be seen separately and all components are in the same state, best describes a solution.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.