{"id":219317,"date":"2025-05-26T03:22:41","date_gmt":"2025-05-26T03:22:41","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=219317"},"modified":"2025-05-26T03:22:44","modified_gmt":"2025-05-26T03:22:44","slug":"write-chemical-complete-ionic-and-net-ionic-equations-for-the-following-reactions-that-produce-water","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/26\/write-chemical-complete-ionic-and-net-ionic-equations-for-the-following-reactions-that-produce-water\/","title":{"rendered":"Write chemical, complete ionic and net ionic equations for the following reactions that produce water"},"content":{"rendered":"\n<p>Write chemical, complete ionic and net ionic equations for the following reactions that produce water a) Sulfuric acid and aqueous potassium hydroxide b) Hydrosulfuric acid and aqueous calcium hydroxide c) Phosphoric acid and aqeuous magnesium hydroxide<br>Write chemical, complete ionic and net ionic equations for the following reactions that produce water<\/p>\n\n\n\n<p>a) Sulfuric acid and aqueous potassium hydroxide<\/p>\n\n\n\n<p>b) Hydrosulfuric acid and aqueous calcium hydroxide<\/p>\n\n\n\n<p>c) Phosphoric acid and aqeuous magnesium hydroxide<\/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 are the <strong>chemical<\/strong>, <strong>complete ionic<\/strong>, and <strong>net ionic<\/strong> equations for each of the acid-base reactions that result in the formation of water:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>a) Sulfuric acid (H\u2082SO\u2084) and aqueous potassium hydroxide (KOH)<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Chemical Equation:<\/strong><\/h4>\n\n\n\n<p>H\u2082SO\u2084(aq) + 2KOH(aq) \u2192 K\u2082SO\u2084(aq) + 2H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Complete Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>H\u207a(aq) + HSO\u2084\u207b(aq) + 2K\u207a(aq) + 2OH\u207b(aq) \u2192 2K\u207a(aq) + SO\u2084\u00b2\u207b(aq) + 2H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Net Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>2OH\u207b(aq) + 2H\u207a(aq) \u2192 2H\u2082O(l)<br>\u2192 simplified: <strong>H\u207a(aq) + OH\u207b(aq) \u2192 H\u2082O(l)<\/strong> (but retain coefficients to match actual stoichiometry)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>b) Hydrosulfuric acid (H\u2082S) and aqueous calcium hydroxide (Ca(OH)\u2082)<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Chemical Equation:<\/strong><\/h4>\n\n\n\n<p>H\u2082S(aq) + Ca(OH)\u2082(aq) \u2192 CaS(aq) + 2H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Complete Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>H\u2082S(aq) + Ca\u00b2\u207a(aq) + 2OH\u207b(aq) \u2192 Ca\u00b2\u207a(aq) + S\u00b2\u207b(aq) + 2H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Net Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>H\u2082S(aq) + 2OH\u207b(aq) \u2192 S\u00b2\u207b(aq) + 2H\u2082O(l)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>c) Phosphoric acid (H\u2083PO\u2084) and aqueous magnesium hydroxide (Mg(OH)\u2082)<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Chemical Equation:<\/strong><\/h4>\n\n\n\n<p>2H\u2083PO\u2084(aq) + 3Mg(OH)\u2082(aq) \u2192 Mg\u2083(PO\u2084)\u2082(s) + 6H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Complete Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>6H\u207a(aq) + 2PO\u2084\u00b3\u207b(aq) + 3Mg\u00b2\u207a(aq) + 6OH\u207b(aq) \u2192 Mg\u2083(PO\u2084)\u2082(s) + 6H\u2082O(l)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Net Ionic Equation:<\/strong><\/h4>\n\n\n\n<p>6H\u207a(aq) + 6OH\u207b(aq) \u2192 6H\u2082O(l)<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Explanation <\/strong><\/h2>\n\n\n\n<p>These reactions are classic examples of <strong>acid-base neutralization<\/strong>, where an acid reacts with a base to form <strong>water<\/strong> and a <strong>salt<\/strong>. The <strong>chemical equation<\/strong> shows the substances involved and the overall transformation. The <strong>complete ionic equation<\/strong> breaks down all strong electrolytes into ions, revealing the actual species present in solution. The <strong>net ionic equation<\/strong> eliminates spectator ions and shows only the ions that participate in the reaction.<\/p>\n\n\n\n<p>In reaction <strong>(a)<\/strong>, sulfuric acid (a strong diprotic acid) donates two protons (H\u207a) to react with hydroxide ions (OH\u207b) from potassium hydroxide, forming water. The salt formed is potassium sulfate (K\u2082SO\u2084), a soluble compound. Both H\u2082SO\u2084 and KOH dissociate fully in water.<\/p>\n\n\n\n<p>For <strong>(b)<\/strong>, hydrosulfuric acid (H\u2082S) is a weak diprotic acid. It reacts with the strong base calcium hydroxide. The base provides OH\u207b ions that react with H\u207a from H\u2082S to form water. The leftover anion (S\u00b2\u207b) forms a salt (CaS) with the Ca\u00b2\u207a ions. This is slightly more complex because H\u2082S does not fully dissociate in solution.<\/p>\n\n\n\n<p>In <strong>(c)<\/strong>, phosphoric acid is a triprotic weak acid, and magnesium hydroxide is a weak base. Despite the weak dissociation of both in water, when they react, they neutralize to form solid magnesium phosphate (an insoluble salt) and water. Because Mg\u2083(PO\u2084)\u2082 is insoluble, it precipitates out, which is why it appears in the chemical equation as a solid.<\/p>\n\n\n\n<p>Each net ionic equation highlights the essence of neutralization: the combination of <strong>H\u207a and OH\u207b to form water<\/strong>, sometimes accompanied by the formation of a <strong>precipitate<\/strong> depending on solubility.<\/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-banner10-6.jpeg\" alt=\"\" class=\"wp-image-219318\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Write chemical, complete ionic and net ionic equations for the following reactions that produce water a) Sulfuric acid and aqueous potassium hydroxide b) Hydrosulfuric acid and aqueous calcium hydroxide c) Phosphoric acid and aqeuous magnesium hydroxideWrite chemical, complete ionic and net ionic equations for the following reactions that produce water a) Sulfuric acid and aqueous [&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 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