When a tap ater is boiled, will its hardness increase or decrease? Is it permanent or just temporary? Can I get your explanations? Sources please...
2007-01-21 23:45:32 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The hardness, or concentration of dissolved minerals, will increase because some of the water evaporates, leaving the minerals behind.
2007-01-21 23:49:02 · answer #1 · answered by redhotsillypepper 5 · 0⤊ 0⤋
Boiling will decrease the hardness as it will decompose the calcium and magnesium salts present in the water which will give it the hardness. They normally get formed as scales in the vessel in which water is boiled. The hardness is depending on the salts which are there in the water if it can be removed by boiling it is temporary hardness otherwise it is permanent hardness.
2007-01-22 07:50:37 · answer #2 · answered by yashtapmi 2 · 2⤊ 0⤋
When water boils, vapor is lost leaving less mass of water but no loss of mineral. Therefore the water will become harder. When the minerals are concentrated to the maximum extent that they can remain dissolved, some mineral will precipitate out and perhaps coat the heating element.
2007-01-22 08:55:54 · answer #3 · answered by Kes 7 · 0⤊ 0⤋
Hardness decreases but it is a temporary effect.
2007-01-22 09:09:55 · answer #4 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Definitely hard water boils faster...
Did you know: That the women living in Texas stated that the water there was so hard it was a pleasure to take a deuce. :)
2007-01-22 08:00:47 · answer #5 · answered by donrentf 3 · 0⤊ 0⤋
refer to wikipedia
2007-01-22 07:48:48 · answer #6 · answered by alexis christian 2 · 0⤊ 1⤋
its hardness will increase
When you boil water the stuff (minerals) that makes it hard, does not evaporate with less water, (it does evaporate) the water left must be harder.
2007-01-22 07:58:49 · answer #7 · answered by Old guy 124 6 · 0⤊ 1⤋
decrease other particles will separate and settle.
2007-01-22 08:17:09 · answer #8 · answered by Earth to Mars 5 · 0⤊ 0⤋
i'm not doing your homework for you
2007-01-22 07:49:01 · answer #9 · answered by creme8888 3 · 0⤊ 1⤋