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Why does the oxygen atom in a water molecule have a negative change?
The oxygen atom in a water molecule has a partially negative charge because oxygen is more electronegative than hydrogen. This causes the electrons in the covalent bonds to be pulled closer to the oxygen atom, giving it a partial negative charge.
How does an atom acquire a change?
An atom acquires a charge by losing or gaining electrons.
Is it true that the octet rule acquires the valence electrons total?
Yes that is true for the first 20 elements, except helium and hydrogen which needs 2 valance electrons to be complete. After 20, things change, but we don't need to worry about it at the basic level.
How are hydrogen bonds important in your body?
Hydrogen bonds are important to the body for several reasons. For one thing, they cause DNA to retain its double helix structure. Additionally, they contribute to the folding of proteins, which is necessary for proper protein function.
When an organic solid is melted are covalent bonds broken?
No, when an organic solid is melted, the covalent bonds within the molecules remain intact. The melting process only involves overcoming intermolecular forces, such as van der Waals forces or hydrogen bonding, which hold the molecules together in the solid state.
What holds the hydrogen and oxygen molecules together in water?
Covalent bonds. The hydrogen and oxygen bond together by sharing outer shell electrons.
Is a phase change an example of a physical or chemical or nuclear or a covalent change?
A phase change is an example of a physical change, not a chemical, nuclear, or covalent change. During a phase change, the substance undergoes a change in state (solid, liquid, gas) without any change in its chemical composition.
Is hydrogen power renewable?
Yes. Hydrogen is collected from water in a proses called electrolysis, (we have a lot of water) in electrolysis an electrical current is sent through the water and the hydrogen (negative ions) is sent towards the negative wire. the hydrogen is sent through a protonic stage membrane fuel cell stack where the hydrogen electrons are split from the atomic nuclei and powers what ever needs doing. The electrons bond back with the rest of the atom and then come back out of the fuel cell, bond with oxygen to change back to H2O.
A molecule having slightly negative and positive ends with regard to change?
A polar molecule is a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative. A diatomic molecule that consists of a polar covalent bond, such as HF, is a polar molecule.
Does covalent bonds give water a low heat capacity?
No, covalent bonds do not directly affect water's heat capacity. Water's high heat capacity is due to its hydrogen bonds, which allow for a large amount of heat to be absorbed or released without causing a large temperature change.
Difference between physical change and chemical change?
First let me define covalent and non-covalent bonds.Covalent bonds are bonds BETWEEN the atoms of a chemical - the atoms share electrons.Noncovalent bonds are the interactions between atoms (and chemicals) that do NOT involve sharing of electrons. (hydrophobic, hydrophilic, and ionic bonds are non-covalent bonds)Physical Change: breaking wood in half, melting ice, deflating a balloon, heating/cooling something (burning NOT included), dissolving something (as long as it does not react with solvent). Physical changes do not make or break covalent bonds. Physical changes only break/make non-covalent bonds (such as hydrophobic, ionic or hydrogen bonds).Chemical Change: burning something, changing the actual chemical makeup in any way - usually by reactions like redox (reduction-oxidation reactions), decomposition and combustion reactions among others. Chemical changes do make and/or break covalent bonds. If the breaking and/or making of covalent bonds occurs - the change is chemical - since you are actually changing the chemical into something new.
In terms of the periodic table is there a gradual or abrupt change when it comes to covalent bonds?
There is a gradual change in the nature of covalent bonds as you move across a period on the periodic table. Covalent bonds become more polar and less covalent as you move from left to right across a period due to increasing electronegativity of the elements.
