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Large quantities of calcium and magnesium ions make water hard.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoMineral ions (primarily calcium) make water "hard". Mineral deposits cause problems (pipes clog up, soap does not lather, dishes do not look clean...)
Wiki User
∙ 11y agoIn the US, the usual culprits are either (or both) Ca+2 and Mg+2.
Wiki User
∙ 11y agocarbonates and bicarbonates of magnesium or calcium
Bicarbonates results in temporary hardness of water
Carbonates cause permanent hardness of water.
Wiki User
∙ 12y agoAny earth alkaline metal (2+)ion that will precipitate with carbonate ions. Eg. calcium, magnesium, iron and manganese ions.
Wiki User
∙ 14y agoHard water.
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How do you define the term acid?
Acid, when referring to the science term are proton donors that yield hydronium ions in a water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
How do ionic compounds form crystals?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
A conjugate acid-base pair differs by several h ions?
true
Why does ammonia accepts H ions in water?
The ammonia molecule has a lone pair of electrons with which a hydrogen ion might bond, forming an ammonium ion. H+ + NH3 --> NH4+
Do bases contain hydroxide ions?
Generally hydroxide ions (in the case of inorganic bases) or nitrogen atoms with a lone pair (in the case of organic bases).
How do you define the term acid?
Acid, when referring to the science term are proton donors that yield hydronium ions in a water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
What is basic substances?
There are three definitions. A substance that produces hydroxide (OH-) ions in water. A substance that accepts a proton (H+ ion). An electron pair donor.
How do ionic crystals form?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
How do ionic compounds form crystals?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
How ionic compound form crystal?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
A conjugate acid-base pair differs by several h ions?
true
Why does ammonia accepts H ions in water?
The ammonia molecule has a lone pair of electrons with which a hydrogen ion might bond, forming an ammonium ion. H+ + NH3 --> NH4+
Do bases contain hydroxide ions?
Generally hydroxide ions (in the case of inorganic bases) or nitrogen atoms with a lone pair (in the case of organic bases).
Does an base contain h ions?
Generally hydroxide ions (in the case of inorganic bases) or nitrogen atoms with a lone pair (in the case of organic bases).
Why does NH3 give OH ions on dissociation in water?
Ammonia is not a base when using the more widely known Arrhenius definition (which states that a base releases OH- and an acid releases H+. Instead, it is considered a base when using the Lewis definition, which states that a base is an electron pair donor, and an acid is an electron pair acceptor. The structure of ammonia, NH3, has a pair on the nitrogen atom, and it is this lone pair that acts as a electron pair donor.Also, when mixed with water, ammonia forms ammonium hydroxide (NH4OH), which is a base according to the Arrhenius definition.See the Related Questions for more information about ammonia and its basicity.
What is the rhyming word pair for a very nice gift?
Pleasant present
Why protein solution turns purple when copper sulfate solution is added?
Copper sulfate solution provides cupric ions that react with the peptide bonds present in the protein molecule. The test is called as biuret test, as it was originally given by biuret compound.( when urea is heated it forms biuret). The reaction is due to the formation of complex between the cupric ions and lone pair of electrons present on the Nitrogen and Oxygen atoms of peptide bond.
