{"id":219320,"date":"2025-05-26T03:27:00","date_gmt":"2025-05-26T03:27:00","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=219320"},"modified":"2025-05-26T03:27:03","modified_gmt":"2025-05-26T03:27:03","slug":"write-balanced-ionic-equations-for-the-following-reactions","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/26\/write-balanced-ionic-equations-for-the-following-reactions\/","title":{"rendered":"Write balanced ionic equations for the following reactions"},"content":{"rendered":"\n<p>Write balanced ionic equations for the following reactions: (a) Aqueous perchloric acid is neutralized by aqueous calcium hydroxide. (b) Aqueous sodium hydroxide is neutralized by aqueous acetic acid.<\/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><strong>Balanced Ionic Equations:<\/strong><\/p>\n\n\n\n<p><strong>(a)<\/strong> Aqueous perchloric acid is neutralized by aqueous calcium hydroxide:<\/p>\n\n\n\n<p><strong>Ionic Equation:<\/strong> 2H+(aq)+2ClO4\u2212(aq)+Ca2+(aq)+2OH\u2212(aq)\u2192Ca2+(aq)+2ClO4\u2212(aq)+2H2O(l)2\\text{H}^+ (aq) + 2\\text{ClO}_4^- (aq) + \\text{Ca}^{2+} (aq) + 2\\text{OH}^- (aq) \\rightarrow \\text{Ca}^{2+} (aq) + 2\\text{ClO}_4^- (aq) + 2\\text{H}_2\\text{O} (l)<\/p>\n\n\n\n<p><strong>Net Ionic Equation:<\/strong> 2H+(aq)+2OH\u2212(aq)\u21922H2O(l)2\\text{H}^+ (aq) + 2\\text{OH}^- (aq) \\rightarrow 2\\text{H}_2\\text{O} (l)<\/p>\n\n\n\n<p>or simplified: H+(aq)+OH\u2212(aq)\u2192H2O(l)\\text{H}^+ (aq) + \\text{OH}^- (aq) \\rightarrow \\text{H}_2\\text{O} (l)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>(b)<\/strong> Aqueous sodium hydroxide is neutralized by aqueous acetic acid:<\/p>\n\n\n\n<p><strong>Ionic Equation:<\/strong> CH3COOH(aq)+Na+(aq)+OH\u2212(aq)\u2192CH3COO\u2212(aq)+Na+(aq)+H2O(l)\\text{CH}_3\\text{COOH} (aq) + \\text{Na}^+ (aq) + \\text{OH}^- (aq) \\rightarrow \\text{CH}_3\\text{COO}^- (aq) + \\text{Na}^+ (aq) + \\text{H}_2\\text{O} (l)<\/p>\n\n\n\n<p><strong>Net Ionic Equation:<\/strong> CH3COOH(aq)+OH\u2212(aq)\u2192CH3COO\u2212(aq)+H2O(l)\\text{CH}_3\\text{COOH} (aq) + \\text{OH}^- (aq) \\rightarrow \\text{CH}_3\\text{COO}^- (aq) + \\text{H}_2\\text{O} (l)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>In acid-base chemistry, a neutralization reaction occurs when an acid reacts with a base to form water and a salt. Ionic equations help illustrate the species actually involved in the reaction by showing how soluble compounds dissociate in aqueous solution.<\/p>\n\n\n\n<p><strong>For part (a):<\/strong> Perchloric acid (HClO\u2084) is a strong acid, meaning it completely dissociates in water into H\u207a and ClO\u2084\u207b ions. Calcium hydroxide (Ca(OH)\u2082) is a strong base and dissociates completely into Ca\u00b2\u207a and OH\u207b ions. The full ionic equation includes all ions in the solution. When combining, H\u207a reacts with OH\u207b to form water. The calcium and perchlorate ions are <em>spectator ions<\/em>\u2014they remain unchanged and don&#8217;t participate directly in the reaction. Removing them gives the <strong>net ionic equation<\/strong>, which simplifies to the neutralization of H\u207a by OH\u207b to form H\u2082O.<\/p>\n\n\n\n<p><strong>For part (b):<\/strong> Acetic acid (CH\u2083COOH) is a weak acid and does <strong>not fully dissociate<\/strong> in solution. Sodium hydroxide (NaOH) is a strong base and dissociates completely into Na\u207a and OH\u207b. The hydroxide ion reacts directly with intact acetic acid molecules to produce acetate (CH\u2083COO\u207b) and water. Since sodium ions remain unchanged, they are omitted in the net ionic equation. This shows a weak acid reacting with a strong base, forming a salt (acetate ion) and water.<\/p>\n\n\n\n<p>Understanding the nature of acids and bases\u2014strong vs. weak\u2014is essential when writing ionic equations, as it determines whether species are written in dissociated form or not. Net ionic equations emphasize the actual chemical change by eliminating ions that do not participate directly.<\/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-banner8-10.jpeg\" alt=\"\" class=\"wp-image-219321\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Write balanced ionic equations for the following reactions: (a) Aqueous perchloric acid is neutralized by aqueous calcium hydroxide. (b) Aqueous sodium hydroxide is neutralized by aqueous acetic acid. The Correct Answer and Explanation is: Balanced Ionic Equations: (a) Aqueous perchloric acid is neutralized by aqueous calcium hydroxide: Ionic Equation: 2H+(aq)+2ClO4\u2212(aq)+Ca2+(aq)+2OH\u2212(aq)\u2192Ca2+(aq)+2ClO4\u2212(aq)+2H2O(l)2\\text{H}^+ (aq) + 2\\text{ClO}_4^- (aq) + [&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-219320","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219320","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=219320"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219320\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=219320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=219320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=219320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}