Radioactivity is A) the spontaneous emission of radiation from ...

[charchew]

Radioactivity is
 
  A) the spontaneous emission of radiation from unstable elements.
  B) the emission of light from certain substances after exposure to sunlight.
  C) the spontaneous emission of radio waves from matter.
  D) the emission of light from matter when exposed to radio waves.

Question 2

How many moles of aluminum chloride can be obtained from 4.5 moles of aluminum and excess chlorine?
 
  Al + Cl2  AlCl3
  A) 1.5
  B) 3.0
  C) 4.5
  D) 6.0

Question 3

Which of the following compounds is not a weak electrolyte when dissolved in distilled water?
 
  A) ammonia
  B) acetic acid (vinegar)
  C) potassium chloride
  D) hydrogen fluoride

[jesse.fleming]

Answer to Question 1

A

Answer to Question 2

C

Answer to Question 3

C

[charchew]

TY

[jesse.fleming]

You're welcome