Multiple Choice
Hard water is caused by
A) Na+ and K+
B) Ca2+, Mg2+, Fe3+
C) Na+ and Al3+
D) K+ and Pb2+
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q1: Which of the following is the major
Q7: Which of the following dissolved substances would
Q9: Acid rain (acid deposition) contributes to which
Q14: Which type of disposal of hazardous waste
Q18: If a sample of tap water has
Q24: Of the household wastes listed below (all
Q27: Freshwater can be made from seawater through<br>A)
Q33: Why are disinfection by-products a health concern?<br>A)
Q36: Which of the following would be considered
Q43: Nitrate ions in waste water can be