B. The sand increases friction by increasing roughness.
Answer:its A ( the transport of nutrients,water,oxygen to body cells
Explanation:
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Answer:
B. The carbons on either side of the double bond are Pointed in opposite directions
In HCl-HCl, the hydrogen-chlorine link is a polar covalent bond. It is produced when two atoms share an electron pair.
When atoms with various electronegativities share electrons in a covalent link, the result is a polar covalent bond. Think about the molecule of hydrogen chloride (HCl). In order to generate an inert gas electron configuration, each atom of HCl needs an additional electron. Despite having a stronger electronegativity than hydrogen, the chlorine atom cannot remove an electron from hydrogen due to its inability to attract electrons. As a result, a polar covalent bond in hydrogen chloride has an unbalanced distribution of bonding electrons.
Learn more about electronegativity here-
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