The two ions responsible for hardness in water are
...The two ions responsible for hardness in water are
Ca2+ and / or Mg2+
K+ and / or Mg2+
Ca2+ and / or Li+
Ca2+ and / or Na+
Correct answer is A
No explanation has been provided for this answer.
What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?...
How many atoms are present in 6.0g of magnesium? [Mg = 24, NA = 6.02 x 1023 mol-1]...
The end products of burning a candle in the atmosphere are water and ...
Which of the following are isomers? ...
Atom 23488Q decay by alpha emission to give an atom R. The atomic number and mass number...
A mixture containing two salts of different solubility can be separated by ...
The following statements about graphite are correct except that it...
Which of the following dilute acids does not react with metals to liberate hydrogen? ...
The property used in the industrial preparation of nitrogen and oxygen from air is? ...