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Explain how a water molecule can be attracted to both a positive ion and a negative ion when dissolving an ionic compound?
Wiki User
∙ 12y ago
The shape and charge distribution in a water molecule cause it to have a permanent dipole moment, which consist of a positive electric charge and a negative charge separated by a distance in space. Therefore, the part of a water molecule that corresponds to the negative charge of its dipole moment is attracted to positive ions, and the part of a water molecule that corresponds to the positive charge of its dipole moment is attracted to negative ions.
Wiki User
∙ 12y ago
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When NaCl is dissolved in water negative end of the water molecules is attracted towards what?
Ion-dipole attraction dictates that the negative pole of a water molecule will be attracted to the sodium cation and the positive pole of a water molecule will be attracted to the chloride anion.
What is a cationic molecule?
A cationic molecule is a positively charged ion. It is attracted to the cathode, or the negative pole, during electrolysis.
What is the term for the process of an ionic compound dissolving in water and separating into positive and negative ions?
dissociation
Why are ionic compounds souble in water?
Ionic compounds are made up of a positive cation (the metal) and a negative anion (the nonmetal). They are soluble in water because they can dissociate. The positive cations are attracted to the negative oxygen side of water molecules while the negative anions are attracted to the positive hydrogen side of water molecules. Water is a polar molecule and pulls the ions that make up the compound away from each other, thus causing the compound to be soluble.
When sodium chloride is dissolved into water what part of the water molecule does sodium get attracted to?
The negative dipole of the oxygen
When NaCl is dissolved in water negative end of the water molecules is attracted towards what?
Ion-dipole attraction dictates that the negative pole of a water molecule will be attracted to the sodium cation and the positive pole of a water molecule will be attracted to the chloride anion.
Water dissolves many ionic and molecular compounds because of its what?
Water is a highly polar molecule which means that one side of the molecule is slightly positive and the other is slightly negative. This means that water molecules are attracted and can form weak bonds with molecules that also have positive sides and negative sides (polar molecules). Basically, the positive side of the water molecule is attracted to the negative side of the polar molecule and the negative side of the water molecule is attracted to the positive side of the polar molecule. Is this way the water is able to surround and separate the polar molecules. The story is much the same for an ionic compound which contains a mixture of positive and negative ions. The positive side of the water molecules surround the negative ions and the negative side of the water molecules surround the positive ions.
When an ionic molecule dissolves in water what does the water molecule do?
Surrounds the ions with the hydrogen, positive end, attracted to the negative ion ( Cl -, for instance ) and the oxygen, negative end, attracted to the positive ion ( Na +, for instance ).
What kind of molecule has two positive atoms attached to a positive atom?
There is no such thing. A positive molecule will only be attracted to a negative molecule.
What characteristic of water helps it cause a mineral to dissolve?
Water is a polar molecule meaning the oxygen part is negative the hydrogen is positive, so in an ionic compound the negative ion get attracted to the hydrogen and the positive ion to the oxygen.
What is a cationic molecule?
A cationic molecule is a positively charged ion. It is attracted to the cathode, or the negative pole, during electrolysis.
What is the term for the process of an ionic compound dissolving in water and separating into positive and negative ions?
dissociation
What parts of the calcium chloride are attracted to what parts of the water molecule?
The oxygen end,which is a negative pole
Why are ironic substances soluble in water a polar solvent?
Water molecules are polar in character, they possess a dipole. The positive part of the water molecule is attracted to the negative ion in the ionic substance, and the negative part of the water molecule to the positive ion. The resulting release of energy encourages the process of dissolving. The solubility of ionic substances is variable and depends on other properties of the constituent elements.
Why are ionic compounds souble in water?
Ionic compounds are made up of a positive cation (the metal) and a negative anion (the nonmetal). They are soluble in water because they can dissociate. The positive cations are attracted to the negative oxygen side of water molecules while the negative anions are attracted to the positive hydrogen side of water molecules. Water is a polar molecule and pulls the ions that make up the compound away from each other, thus causing the compound to be soluble.
When sodium chloride is dissolved into water what part of the water molecule does sodium get attracted to?
The negative dipole of the oxygen
How do polor molecules form hydrogen bonds?
The slightly negative end of one polar molecule will be attracted to the slightly positive, hydrogen end of another molecule.
