« previous next »

Author Question: Radioactivity is A) the spontaneous emission of radiation from unstable elements. B) the ... (Read 78 times)

charchew

  • Hero Member
  • *****
  • Posts: 579
on: Aug 27, 2018
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

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C

Answer to Question 3

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

charchew

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Aug 27, 2018
TY


jesse.fleming

  • Sr. Member
  • ****
  • Posts: 301
Reply #3 on: Aug 27, 2018
You're welcome


« previous next »
 

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Adaptive radiation in stickleback fish. Adaptive radiation in stickleback fish.
Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation. Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.
Electromagnetic Radiation Chart Electromagnetic Radiation Chart
How Axis Tilt Affects the Intensity of Solar Radiation How Axis Tilt Affects the Intensity of Solar Radiation
Optical and Radiation Pyrometry Experiment Optical and Radiation Pyrometry Experiment
Important Trace Elements in the Body Important Trace Elements in the Body
Video: Physiology of Asthma

For a complete list of videos, visit our video library