Two metallic ions commonly present in hard water are
-
A.
Ca2+ and Zn2+ -
B.
Cu2+ and Na+ -
C.
Mg2+ and Ca2+ -
D.
Fe2+ and Na+ -
E.
Zn2+ and Cu2+
You May Also Like
This question is based on General Literary Principles. The main aim of of caricature is…
This question is based on General Literary Principles. The main aim of of caricature is to A. describe…
If a healthy potted plant is continuously kept in dim light
If a healthy potted plant is continuously kept in dim light A. the rate of respiration may equal…
Use the information below to answer questions below; A company advertised and issued N750,000, 12%…
Use the information below to answer questions below; A company advertised and issued N750,000, 12% preference shares of…
If the hypotenuse of right angled isosceles triangle is 2, what is the length of…
If the hypotenuse of right angled isosceles triangle is 2, what is the length of each of the…
Which of the following are contact forces? I. Force of tension II. Force of fiction,…
Which of the following are contact forces? I. Force of tension II. Force of fiction, III. Magnetic force…