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

Author Question: Water containing high concentrations of ________ cations is called hard water. A) Ca2+ B) Mg2+ ... (Read 74 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Aug 27, 2018
Water containing high concentrations of ________ cations is called hard water.
 
  A) Ca2+
  B) Mg2+
  C) Na+
  D) K+
  E) Ca2+ or Mg2+

Question 2

The ________ lattice is one of the five two-dimensional lattices in which the lattice vectors a and b are equal and the  angle between them is 90.
 
  A) square
  B) rectangular
  C) hexagonal
  D) rhombic
  E) oblique


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

A


go.lag

  • Member
  • Posts: 667
Reply 2 on: Aug 27, 2018
Wow, this really help

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

A very high-resolution texture of the Moon, including a normal map A very high-resolution texture of the Moon, including a normal map
Because of the high physical activity and the amount of energy expended by the brains of 2- to ... Because of the high physical activity and the amount of energy expended by the brains of 2- to ...
Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ... Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ...
Fall Velocity of Water Drops Fall Velocity of Water Drops
Water-Reactive Salts Water-Reactive Salts
The water molecule The water molecule
Video: Smoking Cessation

For a complete list of videos, visit our video library