what is unit?

What is a unit? What are its characteristics?

What is a unit vector?

For a second-order reaction, what is the unit of the rate of the reaction

What is SI unit of viscosity coefficient (eta) ?

What is SI unit of viscosity coefficient (eta) ?

If year is taken as the unit of time and velocity of light as the unit of velocity what is the unit of length ?

If the unit of force is 100 N, unit of length is 10m and unit of time is 100 s, what is the unit of mass in this system of units ?

If A_(n)=7^(n)-1 , what is the units digit of A_(33) ?

If S_(n) = (4^n) + 3 , what is the units digit of S_(100) ?

What is specific conductance of a solution and what is its unit? How is it related to the equivalent conductance of the solution?