The closest star to our Sun is Proxima Centauri, which is 4.242 light years away.

What is the distance to Proxima Centauri in

kilometers?

Distance in kilometre = 4.242 x 10¹² km

Explanation:

Given:

Distance of Proxima  Centauri = 4.242 light years

Find:

Distance in kilometre

Computation:

1 light year = 10,000,000,000,000 km

So,

4.242 light years = 4.242 x 10,000,000,000,000

Distance in kilometre = 4.242 x 10¹² km

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume