Author Question: Astatine has a(n) ________ density and a(n) ________ atomic radius compared to iodine. A) ... (Read 88 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
Astatine has a(n) ________ density and a(n) ________ atomic radius compared to iodine.
 
  A) greater; greater
  B) smaller; greater
  C) smaller; smaller
  D) greater; smaller
  E) equal; equal

Question 2

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N2 (g) + 3H2 (g)  2NH3 (g) If the reaction yield is 87.5, how many moles of N2 are needed to produce 3.00 mol of NH3?
 
  A) 0.166
  B) 1.00
  C) 1.5
  D) 1.71
  E) 2.32

Question 3

What is the formula of the compound formed between strontium ions and nitrogen ions?
 
  A) SrN
  B) Sr3N2
  C) Sr2N3
  D) SrN2
  E) SrN3


EAN94

  • Sr. Member
  • ****
  • Posts: 307
Answer to Question 1

A

Answer to Question 2

D

Answer to Question 3

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

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.

For a complete list of videos, visit our video library