Ammonia (NH3) is an example of a Brønsted-Lowry Base. i. Define the Brønsted-Lowry acid-base theory.
ii. What’s the pH of a solution of ammonia that has a concentration of 0.335 M? The Kb of ammonia is 1.8 × 10–5.

They make up examples of physical properties 

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.

Ithink it's the third answer