« previous next »

Author Question: Which of the following pairs is isoelectronic? A) Ar and Ne B) Ar and Na+ C) Ar and F- D) Ar ... (Read 54 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
on: Aug 27, 2018
Which of the following pairs is isoelectronic?
 
  A) Ar and Ne
  B) Ar and Na+
  C) Ar and F-
  D) Ar and S2-

Question 2

If a solute is to be soluble in a given solvent, which step in the solution-making process must have a negative value for its energy?
 
  A) the physical separation of solvent particles
  B) the physical separation of solute particles
  C) the formation of solvent/solute interactions
  D) All three of the preceding steps must be negative for a solute to be soluble.


flexer1n1

  • Sr. Member
  • ****
  • Posts: 373
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Interactions between these ion pairs, and between others Interactions between these ion pairs, and between others
Pairs of heavy and light chains combine to form a Y-shaped molecule Pairs of heavy and light chains combine to form a Y-shaped molecule
homologous pairs homologous pairs
Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
Humans have 23 pairs of chromosomes, containing 3 billion “letters” in the DNA code and about ... Humans have 23 pairs of chromosomes, containing 3 billion “letters” in the DNA code and about ...
Comparison of two pairs of rII mutations Comparison of two pairs of rII mutations
Video: Humerus Adduction Animation

For a complete list of videos, visit our video library