Author Question: Which of the following can be broken down into simpler substances? A) CO B) Se C) Mg D) ... (Read 88 times)

MirandaLo

  • Hero Member
  • *****
  • Posts: 538
Which of the following can be broken down into simpler substances?
 
  A) CO
  B) Se
  C) Mg
  D) F

Question 2

A sample of calcium that contains twice Avogadro's number of atoms has a mass of ________.
 
  A) 20 g
  B) 40 g
  C) 80 g
  D) 160 g



Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

A

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

For a complete list of videos, visit our video library