{"id":154836,"date":"2024-10-15T13:08:03","date_gmt":"2024-10-15T13:08:03","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=154836"},"modified":"2024-10-15T13:08:06","modified_gmt":"2024-10-15T13:08:06","slug":"what-are-3-examples-of-pairs-of-atoms-with-polar-covalent-bonds","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/10\/15\/what-are-3-examples-of-pairs-of-atoms-with-polar-covalent-bonds\/","title":{"rendered":"What are 3 examples of pairs of atoms with polar covalent bonds"},"content":{"rendered":"\n

What are 3 examples of pairs of atoms with polar covalent bonds?\u200b<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Three examples of pairs of atoms with polar covalent bonds are:<\/p>\n\n\n\n

    \n
  1. Hydrogen (H) and Oxygen (O)<\/strong>, as found in water (H\u2082O)<\/li>\n\n\n\n
  2. Hydrogen (H) and Fluorine (F)<\/strong>, as found in hydrogen fluoride (HF)<\/li>\n\n\n\n
  3. Carbon (C) and Oxygen (O)<\/strong>, as found in carbon dioxide (CO\u2082)<\/li>\n<\/ol>\n\n\n\n

    Explanation:<\/h3>\n\n\n\n

    A polar covalent bond<\/strong> occurs when two atoms share electrons unequally due to differences in their electronegativities. Electronegativity is an atom’s ability to attract shared electrons in a chemical bond. The greater the difference in electronegativity between two atoms, the more polar the bond will be. When the difference in electronegativity is moderate, it results in a polar covalent bond. This creates a partial positive charge on one atom (the less electronegative one) and a partial negative charge on the other (the more electronegative one).<\/p>\n\n\n\n

      \n
    1. Hydrogen and Oxygen (H\u2082O)<\/strong>: In a water molecule, oxygen has a much higher electronegativity (3.44) compared to hydrogen (2.20). This causes the electrons to be more strongly attracted to the oxygen atom, creating a partial negative charge on the oxygen and a partial positive charge on each hydrogen. This results in a bent molecular structure, where the polar covalent bonds between hydrogen and oxygen give water its distinctive properties, such as high surface tension and the ability to dissolve many substances.<\/li>\n\n\n\n
    2. Hydrogen and Fluorine (HF)<\/strong>: In hydrogen fluoride, fluorine has an extremely high electronegativity (3.98), while hydrogen is much less electronegative (2.20). The electrons are pulled much closer to the fluorine atom, creating a strong dipole with a partial negative charge on the fluorine and a partial positive charge on the hydrogen.<\/li>\n\n\n\n
    3. Carbon and Oxygen (CO\u2082)<\/strong>: In carbon dioxide, oxygen is significantly more electronegative (3.44) than carbon (2.55). While CO\u2082 as a whole is nonpolar due to its linear shape, the individual bonds between carbon and oxygen are polar. Oxygen pulls electrons toward itself, creating a partial negative charge at each oxygen atom and leaving carbon with a partial positive charge.<\/li>\n<\/ol>\n\n\n\n

      These examples illustrate how differences in electronegativity between atoms lead to polar covalent bonds, with electrons being unequally shared, resulting in dipoles that contribute to the molecule’s overall properties.<\/p>\n","protected":false},"excerpt":{"rendered":"

      What are 3 examples of pairs of atoms with polar covalent bonds?\u200b The Correct Answer and Explanation is: Three examples of pairs of atoms with polar covalent bonds are: Explanation: A polar covalent bond occurs when two atoms share electrons unequally due to differences in their electronegativities. Electronegativity is an atom’s ability to attract shared […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-154836","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/154836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=154836"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/154836\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=154836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=154836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=154836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}