« previous next »

Author Question: The lime-soda process is used for large-scale water-softening operations. CaO is added to ________. ... (Read 59 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
on: Aug 27, 2018
The lime-soda process is used for large-scale water-softening operations. CaO is added to ________.
 
  A) oxidize Fe2+ to insoluble Fe2O3
  B) cause precipitation of magnesium as Mg(OH)2
  C) remove most Al3+ as solid Al(OH)3
  D) cause precipitation of iron and magnesium as Fe2MgO4
  E) reduce the pH to 3-4

Question 2

A 0.100 M solution of ________ will contain the highest concentration of potassium ions.
 
  A) potassium phosphate
  B) potassium hydrogen carbonate
  C) potassium hypochlorite
  D) potassium iodide
  E) potassium oxide


lkanara2

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Large Tortoiseshell Large Tortoiseshell
Rule of Nines. A method for determining percentage of body burned. Each different colored section re Rule of Nines. A method for determining percentage of body burned. Each different colored section re
Diverticulosis. It is the presence of abnormal pouches in the wall of the large intestine (diverticu Diverticulosis. It is the presence of abnormal pouches in the wall of the large intestine (diverticu
Before starting the process of adjusting the valves, look up the specifications and exact ... Before starting the process of adjusting the valves, look up the specifications and exact ...
Nonfat Milk with added protein Nonfat Milk with added protein
Video: The Lagging Strand in DNA Replication and Replication in Action

For a complete list of videos, visit our video library