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

Author Question: The principal cations in hard water are sodium and potassium ions. Indicate whether the statement ... (Read 46 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Aug 27, 2018
The principal cations in hard water are sodium and potassium ions.
 
  Indicate whether the statement is true or false

Question 2

Plexiglass is
 
  A) polyvinyl chloride.
  B) polymethyl methacrylate.
  C) polytetrafluoroethy lene.
  D) polyvinyl acetate.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

janeli

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Aug 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

B


Charlie

  • Hero Member
  • *****
  • Posts: 640
Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


janeli

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Aug 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

The principal components of a spectrophotometer The principal components of a spectrophotometer
Ripples in Water Ripples in Water
Water Hole Water Hole
Total body water (TBW) Total body water (TBW)
Formation of sodium chloride ions. Formation of sodium chloride ions.
Water provides adequate hydration Water provides adequate hydration
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library