Answer and explanation

Correct answer: B. 6.02 x 10^23

  1. Step 1: One mole contains 6.02 x 10^23 particles. Answer: 6.02 x 10^23. Why not the others: 3.0 x 10^8, 9.8 and 1.6 x 10^-19 don't fit.

Practise more Concepts in physics and chemistry.

Free questions with an explanation for every one, and full timed UNI Admission Exam (Peru) mock tests.