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Is it true that in a water molecule the electrons within the molecule are attracted more towards the hydrogen atoms?
Wiki User
∙ 13y ago
Water is a polar molecule where the electrons spend more time in orbitals around the oxygen atom because it is significantly more electronegative than the hydrogen atoms.
So, false is the answer.
Wiki User
∙ 13y ago
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How can water have polar bonds and be a polar molecule too?
In water, the two hydrogen's are bonded to the one oxygen. The differing electronegativities make the electrons become shared unevenly. They then become charged positively towards the Hydrogen's (because of less electronegativity) and oxygen charged negatively. This is what makes the bonds polar. The bent shape of the whole molecule makes it so there is more overall negative charge towards the oxygen (because the electrons get attracted more towards the atom with greater electronegativity). This is what makes the molecule polar.
What bond occurs when a pair of electrons is unequally shared between two atoms?
In H2O the electrons are shared by the oxygen atom and two hydrogen atoms. Although there are two hydrogen atoms, the electro-negativity (or ability to attract electrons) of the oxygen is greater than the hydrogens, therefore the electrons are pulled greater towards the oxygen resulting in the oxygen becoming "negatively charged" this results in the molecule becoming what is known as a "dipolar molecule". This is what causes water to be attracted to each other as each molecule has a positive and negative pole. Answered by Mason Rawling-Jones (currently 15).
What type of bond is between the positive hydrogen end of one molecule towards the negative end of another molecule?
This is a hydrogen bond.
Why dont hydrogen and oxygen atoms share electrons equally in a water molecule?
Because the electronegativity of oxygen is about 3.5 and the electronegativity of hydrogen is about 2.5. So, the electrons shared in this polar covalent bond spend more time in the orbitals around oxygen that the orbitals around hydrogen giving the molecule slightly negative and positive ends.
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.
How can water have polar bonds and be a polar molecule too?
In water, the two hydrogen's are bonded to the one oxygen. The differing electronegativities make the electrons become shared unevenly. They then become charged positively towards the Hydrogen's (because of less electronegativity) and oxygen charged negatively. This is what makes the bonds polar. The bent shape of the whole molecule makes it so there is more overall negative charge towards the oxygen (because the electrons get attracted more towards the atom with greater electronegativity). This is what makes the molecule polar.
When are hydrogen bonds formed?
Short Answer: a partially positive hydrogen atom gets attracted to a partially negatively charged atom. _______________________ Take water for example. There is an Oxygen atom (which pulls electrons towards it-- making it partially negative) There are also two hydrogen atoms. The (negatively charged) electron on each H atom is being pulled towards the O atom, making the Hydrogen partially positive. Now, when two water molecules come together, the partially positively charged H's on one water molecule are attracted to the partially negatively charged O's on the other molecule. This attraction between oppositely charged atoms on different molecules creates a 'hydrogen bond'.
What bond occurs when a pair of electrons is unequally shared between two atoms?
In H2O the electrons are shared by the oxygen atom and two hydrogen atoms. Although there are two hydrogen atoms, the electro-negativity (or ability to attract electrons) of the oxygen is greater than the hydrogens, therefore the electrons are pulled greater towards the oxygen resulting in the oxygen becoming "negatively charged" this results in the molecule becoming what is known as a "dipolar molecule". This is what causes water to be attracted to each other as each molecule has a positive and negative pole. Answered by Mason Rawling-Jones (currently 15).
A hydrogen bond forms when a positively charged hydrogen ion bonds to a negatively charged atom?
No, hydrogen bonding occurs in covalent compounds in which hydrogen is bonded to nitrogen, oxygen, or fluorine. These elements will pull electrons towards them getting a partial negative charge and giving hydrogen a partial positive charge.The actual hydrogen bonding occurs when the partial positive charge on one such molecule is attracted to the partial negative charge on another.Technically it isn't a type of bond.
What type of bond is between the positive hydrogen end of one molecule towards the negative end of another molecule?
This is a hydrogen bond.
Why dont hydrogen and oxygen atoms share electrons equally in a water molecule?
Because the electronegativity of oxygen is about 3.5 and the electronegativity of hydrogen is about 2.5. So, the electrons shared in this polar covalent bond spend more time in the orbitals around oxygen that the orbitals around hydrogen giving the molecule slightly negative and positive ends.
What are the partial charges in a water molecule?
The Oxygen molecule and Hydrogen molecules have different electronegativity (due to position on Periodic Table). As Oxygen is more electronegative it draws the negatively charged electrons towards itself. This makes the hydrogen atoms more positive and hence the partial charges.
What reactant for the reaction that is powered by the sun hitting photosynthesis ll?
First of all it's not photosynthesis II, its photosystem II. well basically, the hydrogen atom within the water molecule loses its electrons and the electrons basically travels through all the photosytems via electron transport chains, towards the NADP Reductase where NADP+ is attached with the electrons from the hydrogen atoms of the water molecule to form NADPH
Polar molecules they attrack to other substances?
Polar molecules have unequal distribution of electrons. Water for example, oxygen is more electronegative than hydrogen so it will pull electrons towards itself, giving oxygen partial negative charge on it and partial positive charge on the hydrogen. A hydrogen bond forms between the partial negative charge on oxygen on another water molecule and partial positive charge on hydrogen on other water molecule.
Does Water display surface tension?
Surface tension of water is the physical property of hydrogen bonding that makes the water molecule. The way that this works is that a water molecule (H2O) is a polar molecule. This is because the oxygen has a much higher electronegative value than the hydrogen. This means that the oxygen gets a lot higher 'share' of the shared electrons than the hydrogen does. This gives oxygen a very high partial negative charge, and the hydrogen a very high partial positive charge. Because of these high partial charges on each end of the molecule, they are very highly attracted to each otherThis makes a strong type of intermolecular force called a hydrogen bond. The hydrogen bond 'pulls' the water molecules towards each other. So when in the centre of a water molecule the hydrogen bonds go in every direction. But when they are on the outside of a mass of water they are attracted only by molecules inside the mass of water. This makes a 'film' over the surface of the water.
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 the difference between covalent polar covalent and hydrogen bonds?
Covalent - equal sharing of generally one pair of electrons (e.g. H2 hydrogen molecule)Polar covalent- ubequal sharing - the more electronegative element "attracts " the electrons in the bond towards it causing the formation of a small negative charge (and a small compensating positive charge on the less electronegative atom) example HCl, hydrogen chloride moleculeA hydrogen bond is a weak electrostatic bond invoving a hydrogen atom covakently bonded to one atom attracted to a very electrnegative atom. (Example is water, H2O)
