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Explain why in a covalent bond between oxygen and hydrogen the hydrogen atom has a partial positive charge and the oxygen atom has a partial negative charge?
Because, unless bonded to another hydrogen atom, the "covalent" bond is actually partially ionic, meaning the electron shared in the bond tends to spend more time close to the other atom making the hydrogen partially positive. This is due to electronegativity. Most other atoms are more electronegative than hydrogen, meaning they have a stronger attractive force for electrons than hydrogen does, so the other atom pulls on the hydrogen more strongly and ends up being more negative in the bonding pair than hydrogen.
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Explain how the atoms in a polar covalent bond can have some electric charge?
In a polar covalent bond, the atoms have different electronegativities, causing uneven sharing of electrons. This unequal sharing leads to partial positive and partial negative charges on the atoms, making the bond polar.
Explain how a water molecule can be attracted to both a positive ion and a negative ion when dissolving an ionic compound?
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.
Explain why water molecules are capable of hydrogen bonding with 4 neighbouring water molecues?
Water molecules contain polar covalent bonds due to the unequal sharing of electrons between oxygen and hydrogen atoms. This polarity allows water molecules to form hydrogen bonds with neighboring water molecules, as the slightly positive hydrogen atom attracts the slightly negative oxygen atom of another water molecule. This unique structure and polarity of water molecules make them capable of forming hydrogen bonds with up to four neighboring water molecules, resulting in strong intermolecular forces.
Why is it important to understand why covalent bonds are polar?
Understanding why covalent bonds are polar is important because it helps explain how molecules interact with each other. Polar covalent bonds result in unequal sharing of electrons, leading to partial positive and negative charges within a molecule. This affects the molecule's overall shape, properties, and interactions with other molecules, which is crucial in fields such as chemistry, biology, and materials science.
Can you explain what a polar molecule is and provide an example?
A polar molecule is a molecule with an uneven distribution of charge, resulting in one end being slightly positive and the other end being slightly negative. This separation of charge creates a dipole moment. An example of a polar molecule is water (H2O), where the oxygen atom is more electronegative than the hydrogen atoms, causing the oxygen end to be slightly negative and the hydrogen end to be slightly positive.
Explain would the formation of a goiter be positive or negative feedback?
Negative.
Explain in your own words how we add numbers with different signs?
Positive plus positive equals positive. Negative plus negative equals negative. Positive greater than negative equals positive. Negative greater than positive equals negative.
Was there a positive or negative impact on society?
prompt:how did the railroads impact society, was it a positive impact or negative ?explain
How do you explain how a negative times a positive makes a negative?
+*-=-. Example. 3*-3=-9.
Will a negative number to the fifth power be a positive or a negative value explain?
Negative, because 5 is an odd number
Explain why the square root of 64 has a positive and a negative value?
That simply means that there is both a positive and a negative number which, when squared, gives you 64.
When a negative number is subtracted from a positive number a positive a negative number or a zero explain and give an example?
LOVE to HATE = Hate (Negative)LOVE to LOVE = Love (Positive)HATE to HATE = Hate (Negative)HATE to LOVE = Hate (Negative)HATE is a NEGATIVE numberLOVE is a POSITIVE number
Explain what happens when two hydrogen atoms bond?
Each hydrogen atom has 1 electron. When two hydrogen atoms combine they each share that electron with the other hydrogen atom, creating a covalent bond and a molecule of H2.
Explain how you can find the sign of the product of two or more rational numbers?
Negative times negative equals positive. Positive times positive equals positive. Positive times negative equals negative. If you have more than two numbers, multiply the first two and then apply these rules to each successive number in turn.
Explain how the atoms in a polar covalent bond can have some electric charge?
In a polar covalent bond, the atoms have different electronegativities, causing uneven sharing of electrons. This unequal sharing leads to partial positive and partial negative charges on the atoms, making the bond polar.
Explain how a water molecule can be attracted to both a positive ion and a negative ion when dissolving an ionic compound?
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.
Can the square of an integer be a negative number explain?
No, any 2 negative numbers multiplied together equal a positive number
