Multiple Choice
Identify the salts that are in hard water.
A) CaCO3 and MgCO3
B) MgSO4 and CaSO4
C) NaCl and KBr
D) NaHSO4 and Na2SO4
E) NaOCl and HOCl
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q119: Calculate the molar solubility of thallium chloride
Q120: Which of the following solutions is a
Q121: Calculate the mole ratio of CH<sub>3</sub>COONa to
Q122: How many millilitres of 0.120 mol L<sup>-1</sup>
Q123: A 100.0 mL sample of 0.10 mol
Q125: A buffer solution is 0.100 mol L<sup>-1</sup>
Q126: Calculate the pH of a buffer that
Q127: If the pK<sub>a </sub>of HCOOH is 3.74
Q128: Sodium hypochlorite, NaOCl, is the active ingredient
Q129: An acid solution is 0.100 mol L<sup>-1</sup>