This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why might sodium carbonate (washing soda, Na2CO3 ) be added to hard water to aid in cleaning? A) ... (Read 201 times)

urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
on: Aug 27, 2018
Why might sodium carbonate (washing soda, Na2CO3 ) be added to hard water to aid in cleaning?
 
  A) The hard ions in the water are more attracted to the carbonate ions -2 charge.
  B) The hard ions are dissolved by the added sodium ions.
  C) The soap gets softer due to the added ions.
  D) The ions solubilize the soap due to ion-ion intermolecular attraction, which improves the cleaning ability.
  E) none of the above

Question 2

What is the main function of the structural difference of the sugar that makes up RNA?
 
  A) It keeps the RNA from binding tightly to DNA.
  B) It allows the RNA to be easily digested by enzymes.
  C) It keeps the RNA stable while it is outside the nucleus.
  D) It acts as an energy source for the production of proteins.
  E) all of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

anyusername12131

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Aug 27, 2018
Thank you!


anyusername12131

  • Sr. Member
  • ****
  • Posts: 327
Reply #3 on: Aug 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

To travel quickly, killer whales leap out of the water when swimming—a behaviour kn To travel quickly, killer whales leap out of the water when swimming—a behaviour kn
Claude Monet, Water Lilies, Morning: Willows (central section and right side). Claude Monet, Water Lilies, Morning: Willows (central section and right side).
Using trace elements in carbonate shells to estimate temperature Using trace elements in carbonate shells to estimate temperature
Most Americans obtain their drinking water from a community water system Most Americans obtain their drinking water from a community water system
Sodium has a strong reaction to water Sodium has a strong reaction to water
Work of Running Water Work of Running Water
Video: EpiPen Animation (Part 2)

For a complete list of videos, visit our video library