0
When hydrogen and oxygen bind to one another the electrons are pulled?
Wiki User
∙ 14y ago
More toward oxygen
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What happens to the polarity of oxygen atoms as they transform from molecular oxygen into water molecules?
In the bond in molecular oxygen, the electrons are pulled equally towards each element, as they are the same element and so have the same electronegativity. In water, however, the bonds are between hydrogen and oxygen. The nucleus of oxygen has eight times the charge of the nucleus of hydrogen, and so attracts the electrons more strongly than hydrogen does. It does not attract eight times as strongly as hydrogen as the extra electron shell repels the electrons in the bond more than hydrogen's nonexistent shells (its only electron is in the bond). It can therefore be said that oxygen is more electronegative than hydrogen. As the oxygen attracts the electrons more strongly than the hydrogen, it gains a partially negative charge. Similarly, the hydrogen gains a partially positive charge. This polarity is responsible for the interesting properties of water, including its ability to stay liquid at room temperature, its low density as a solid and its ability to climb up a narrow capillary tube without any force applied to it.
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).
Because the electrons in a molecule of hydrogen fluoride are more strongly pulled toward the fluorine atom is the molecule nonpolar?
yes
Why higher alcohols are insoluble in water and lower alcohols are soluble in water?
Hydrogen bonding occurs between molecules where you have a hydrogen atom attached to one of the very electronegative elements - fluorine, oxygen or nitrogen.In the case of alcohols, there are hydrogen bonds set up between the slightly positive hydrogen atoms and lone pairs on oxygens in other molecules.The hydrogen atoms are slightly positive because the bonding electrons are pulled away from them towards the very electronegative oxygen atoms.just bcz of hydrogen bondingsolubility differs..
How does a hydrogen bond compare to a covalent bond?
The short answer, without too much research or effort on my part, is that hydrogen bonds are weaker. The are due to the attraction of hydrogen to other elements (such as oxygen) that have lone pairs swimming around. Covalent bonds are due to electronic effects, and as such are stronger.
What happens to water molecules as a result of the actions of the photosystem II enzyme?
They are split into oxygen and hydrogenThey are split into oxygen and hydrogen
What happens to the polarity of oxygen atoms as they transform from molecular oxygen into water molecules?
In the bond in molecular oxygen, the electrons are pulled equally towards each element, as they are the same element and so have the same electronegativity. In water, however, the bonds are between hydrogen and oxygen. The nucleus of oxygen has eight times the charge of the nucleus of hydrogen, and so attracts the electrons more strongly than hydrogen does. It does not attract eight times as strongly as hydrogen as the extra electron shell repels the electrons in the bond more than hydrogen's nonexistent shells (its only electron is in the bond). It can therefore be said that oxygen is more electronegative than hydrogen. As the oxygen attracts the electrons more strongly than the hydrogen, it gains a partially negative charge. Similarly, the hydrogen gains a partially positive charge. This polarity is responsible for the interesting properties of water, including its ability to stay liquid at room temperature, its low density as a solid and its ability to climb up a narrow capillary tube without any force applied to it.
Why do you die if you have lack of oxygen?
The stage in cellular respiration that supplies most of the energy for our cells involves electrons "falling" to different "stages". The electrons fall because they are pulled that way by oxygen, which has a very high attraction to electrons. As they fall, they supply energy to proteins that "pump" hydrogen across a membrane in our mitochondria, creating a "dam" of hydrogen ions. These ions will try to "flood" out of the "dam", doing so by going through a complex that acts as a turbine, supplying energy to cells. So, basically, oxygen is needed for the electrons to fall to start the energy-producing process. So, oxygen is needed is producing energy- if we run out of oxygen, we run out of energy.
What is the molecular composition of water?
H20 is the molecular composition of water. Two hydrogen atoms and one oxygen atom. The hydrogen atoms are pulled to the oxygen atom through forces called hydrogen bonding.
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).
Because the electrons in a molecule of hydrogen fluoride are more strongly pulled toward the fluorine atom is the molecule nonpolar?
yes
Why higher alcohols are insoluble in water and lower alcohols are soluble in water?
Hydrogen bonding occurs between molecules where you have a hydrogen atom attached to one of the very electronegative elements - fluorine, oxygen or nitrogen.In the case of alcohols, there are hydrogen bonds set up between the slightly positive hydrogen atoms and lone pairs on oxygens in other molecules.The hydrogen atoms are slightly positive because the bonding electrons are pulled away from them towards the very electronegative oxygen atoms.just bcz of hydrogen bondingsolubility differs..
What compound is formed at the end of electron transport chain?
Through the ATP synthase adenosine triphosphate is formed. The electrons are pulled through by oxygen and the H + falls down it's concentration gradient to be formed with the oxygen and electrons into water.
Why wont alka seltzer dissolve in vegetable oil?
Vegetable oil is made of nonpolar molecules and vinegar (which is a solution of approximately 5% acetic acid and water) is made of polar molecules. Where solubility is concerned, the rule is usually "like dissolves like", or materials with similar types of intermolecular forces tend to be soluble in one another. The carbon and hydrogen atoms in its fatty acid chains have similar electronegativities, so the electrons aren't pulled to any one part of the molecule. This makes it attracted to other materials that are nonpolar (have no negative or positive charges), but not to materials that are polar. Vinegar contains oxygen-hydrogen bonds that are quite polar--the oxygen pulls electrons away from the hydrogen, giving oxygen a partial negative and hydrogen a partial positive charge. That results in molecules that are attracted to other substances with full or partial charges.
How does a hydrogen bond compare to a covalent bond?
The short answer, without too much research or effort on my part, is that hydrogen bonds are weaker. The are due to the attraction of hydrogen to other elements (such as oxygen) that have lone pairs swimming around. Covalent bonds are due to electronic effects, and as such are stronger.
Why does water have strong hydrogen bonds?
The hydrogen atom of one water molecule, with its partial positive charge, is attracted to the oxygen atom of a neighboring water molecule, with its partial negative charge, forming a hydrogen bond.
Is hydrogen more electronegative than chlorine?
No, on the Arbitrary Pauling Scale hydrogen's relative electronegativity is less than that of chlorine, indicating that hydrogen attracts electrons in a bond more strongly. In hydrogen chloride (hydrochloric acid as an acid) the two shared electrons would be pulled towards hydrogen in a polar covalent bond. F, Cl, N, and O are the four most electronegative elements. Metals are least electronegative and nonmetals are the most.
