Question

ASAP PLEASE

Answer 1

Answer:

• Option A.) 2 ppm

Explanation:

60 particles in 30 million can be expressed as a fraction:

• $\frac{60}{30million}$

And, dividing both numerator and denominator by 30, that can be simplified as:

• $\frac{2}{1million}$

That means 2 particles of sulfur dioxide in 1 million particles of sample, which is 2 parts per million or 2 ppm, which is the option A.