Ammonia gas dissolves in water to produce ammonia solution. Ammonia solution contains hydroxide ions, OH
A student adds universal indicator to solutions of nitric acid and ammonia.
What colour is observed in each solution?
Colour in nitric acid?
Colour in ammonia solution?

explanation:

since this is put under health, i would define "ethical (medical) behavior" the way the oath for doctors is recited.   "first do no harm."

but the term in general means when given a choice between right and wrong, we should always choose right. if we do, then we are practicing ethical behavior.

3

explanation:

let that person have a turn to speak : )

a) the particles of the chair are strongly held together.