Answer : Verbal and non-verbal communication wad used by Investigators in the past when trying to determine if someone was lying.
Explanation: In the Verbal communication information is transferred from one person to other by speaking.
Non-verbal communication includes Facial expressions , eye contact , body language, eyes blinking etc.
If someone is lying he or she will easily dermined by applying above things.
Answer: (b) protons have positive charges
Cu(OH)2 + HCl =
H2SO4 =
HNO3 =
Answer:
it's a precipitation reaction.
Explanation:
the solid produced is insoluble with water–making it a precipitate.
Answer:
3min=180s so 180:30=6
=6