{"id":220844,"date":"2025-05-28T20:31:18","date_gmt":"2025-05-28T20:31:18","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=220844"},"modified":"2025-05-28T20:31:20","modified_gmt":"2025-05-28T20:31:20","slug":"draw","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/28\/draw\/","title":{"rendered":"DRAW"},"content":{"rendered":"\n<p>DRAW:<\/p>\n\n\n\n<p>One water molecule<\/p>\n\n\n\n<p>Label all atoms<\/p>\n\n\n\n<p>Label all polar covalent bonds<\/p>\n\n\n\n<p>Label all partial charges<\/p>\n\n\n\n<p>DRAW:<\/p>\n\n\n\n<p>Two water molecules<\/p>\n\n\n\n<p>Attached to each other by hydrogen bond<\/p>\n\n\n\n<p>Label hydrogen bonds<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here is a drawing and explanation of <strong>one water molecule<\/strong> and <strong>two water molecules forming a hydrogen bond<\/strong>, along with labels for atoms, polar covalent bonds, partial charges, and hydrogen bonds.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>DRAWING: One Water Molecule (H\u2082O)<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>    \u03b4\u2212        \u03b4+       \u03b4+\n     O \u2014\u2014 H     H\n     |       \/\nPolar covalent bonds<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Atoms labeled<\/strong>:<\/li>\n\n\n\n<li>O = Oxygen (\u03b4\u2212)<\/li>\n\n\n\n<li>H = Hydrogen (\u03b4+)<\/li>\n\n\n\n<li><strong>Partial charges<\/strong>:<\/li>\n\n\n\n<li>Oxygen: <strong>\u03b4\u2212<\/strong> (partially negative)<\/li>\n\n\n\n<li>Hydrogen: <strong>\u03b4+<\/strong> (partially positive)<\/li>\n\n\n\n<li><strong>Bonds<\/strong>:<\/li>\n\n\n\n<li>Two <strong>polar covalent bonds<\/strong> between O and H<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>DRAWING: Two Water Molecules with Hydrogen Bond<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>    \u03b4\u2212        \u03b4+                         \u03b4\u2212        \u03b4+\n     O \u2014\u2014 H     H  \u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7  H \u2014\u2014 O \u2014\u2014 H\n     |       \/                                   |\n Polar covalent bonds                 Polar covalent bonds\n                \u2191\n        Hydrogen bond (between O of one molecule and H of another)<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hydrogen bond<\/strong> shown as dotted line: <strong>\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7\u00b7<\/strong><\/li>\n\n\n\n<li>Between: <strong>O (\u03b4\u2212)<\/strong> of one molecule and <strong>H (\u03b4+)<\/strong> of the other<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcd8 <strong>Explanation <\/strong><\/h3>\n\n\n\n<p>A water molecule (H\u2082O) consists of one oxygen atom covalently bonded to two hydrogen atoms. The O-H bonds are <strong>polar covalent<\/strong> because oxygen is more electronegative than hydrogen, pulling the shared electrons closer to itself. As a result, the oxygen atom gains a partial negative charge (<strong>\u03b4\u2212<\/strong>) and each hydrogen atom gains a partial positive charge (<strong>\u03b4+<\/strong>).<\/p>\n\n\n\n<p>The geometry of a water molecule is <strong>bent<\/strong> (angular) with a bond angle of approximately <strong>104.5\u00b0<\/strong>, caused by the two lone pairs on the oxygen which repel the bonded pairs of electrons.<\/p>\n\n\n\n<p>This polarity leads to <strong>intermolecular hydrogen bonding<\/strong>, a key feature of water. When multiple water molecules are present, the partially positive hydrogen atom of one molecule is attracted to the partially negative oxygen atom of another molecule. This attraction is called a <strong>hydrogen bond<\/strong>, represented by a dotted line.<\/p>\n\n\n\n<p>Hydrogen bonds are <strong>weaker<\/strong> than covalent bonds but crucial for many of water\u2019s unique properties, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High boiling point<\/li>\n\n\n\n<li>Surface tension<\/li>\n\n\n\n<li>Cohesion and adhesion<\/li>\n\n\n\n<li>Ice being less dense than liquid water<\/li>\n<\/ul>\n\n\n\n<p>Hydrogen bonding plays an essential role in <strong>biological systems<\/strong> as well, such as the structure of DNA and protein folding.<\/p>\n\n\n\n<p>In summary, each water molecule forms <strong>polar covalent bonds internally<\/strong>, and <strong>hydrogen bonds externally<\/strong> with other water molecules. The combination of these bond types gives water its remarkable chemical and physical behavior.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/05\/learnexams-banner5-97.jpeg\" alt=\"\" class=\"wp-image-220845\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>DRAW: One water molecule Label all atoms Label all polar covalent bonds Label all partial charges DRAW: Two water molecules Attached to each other by hydrogen bond Label hydrogen bonds The Correct Answer and Explanation is: Here is a drawing and explanation of one water molecule and two water molecules forming a hydrogen bond, along [&hellip;]<\/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-220844","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/220844","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=220844"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/220844\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=220844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=220844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=220844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}