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Author Question: Water containing high concentrations of ________ cations is called hard water. A) Ca2+ B) Mg2+ ... (Read 56 times)

go.lag

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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


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debra928

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Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

A


go.lag

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Reply 2 on: Aug 27, 2018
Excellent

debra928

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Reply 3 on: Yesterday
:D TYSM

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