Author Question: Which of these is NOT considered a heavy metal? A) Ca B) Ag C) Hg D) ... (Read 55 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
Which of these is NOT considered a heavy metal?
 
  A) Ca
  B) Ag
  C) Hg
  D) Au

Question 2

A ________ H corresponds to an ________ process.
 
  A) negative, endothermic
  B) negative, exothermic
  C) positive, exothermic
  D) zero, exothermic
  E) zero, endothermic



nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

A

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

For a complete list of videos, visit our video library