{"id":209289,"date":"2025-04-29T04:15:04","date_gmt":"2025-04-29T04:15:04","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=209289"},"modified":"2025-04-29T04:15:06","modified_gmt":"2025-04-29T04:15:06","slug":"using-the-criteria-for-double-displacement-reactions-and-the-solubility-table","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/29\/using-the-criteria-for-double-displacement-reactions-and-the-solubility-table\/","title":{"rendered":"Using the criteria for double displacement reactions and the solubility table"},"content":{"rendered":"\n<p>Using the criteria for double displacement reactions and the solubility table b- KOH+HCl? c-CaCO3 + HCl ? d- Ba(NO3)2+NmPO1-&gt; e- BiCl3+ NaOH ?<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>In double displacement reactions, also known as metathesis reactions, two ionic compounds exchange their ions to form new products. The key criteria for determining whether a double displacement reaction will occur include:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The formation of a <strong>precipitate<\/strong> (an insoluble product).<\/li>\n\n\n\n<li>The formation of a <strong>gas<\/strong> (often released during the reaction).<\/li>\n\n\n\n<li>The formation of <strong>water<\/strong> (as in acid-base neutralization reactions).<\/li>\n<\/ol>\n\n\n\n<p>Let\u2019s break down each reaction using these criteria:<\/p>\n\n\n\n<p><strong>a) KOH + HCl \u2192 KCl + H\u2082O<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type<\/strong>: Neutralization (acid-base reaction).<\/li>\n\n\n\n<li>KOH is a strong base, and HCl is a strong acid. When combined, they form water (H\u2082O) and potassium chloride (KCl), which is soluble in water. This is a neutralization reaction, which always results in water as the product.<\/li>\n\n\n\n<li><strong>Conclusion<\/strong>: The reaction occurs because a neutralization between the acid and base produces water.<\/li>\n<\/ul>\n\n\n\n<p><strong>b) CaCO\u2083 + 2HCl \u2192 CaCl\u2082 + CO\u2082 + H\u2082O<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type<\/strong>: Double displacement with gas formation.<\/li>\n\n\n\n<li>Calcium carbonate (CaCO\u2083) reacts with hydrochloric acid (HCl). The products are calcium chloride (CaCl\u2082), carbon dioxide (CO\u2082), and water. Carbon dioxide is a gas that escapes from the solution.<\/li>\n\n\n\n<li><strong>Conclusion<\/strong>: The reaction occurs because CO\u2082 gas is formed, which escapes the solution, driving the reaction.<\/li>\n<\/ul>\n\n\n\n<p><strong>c) Ba(NO\u2083)\u2082 + 2NaPO\u2084 \u2192 Ba\u2083(PO\u2084)\u2082 + 2NaNO\u2083<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type<\/strong>: Precipitation reaction.<\/li>\n\n\n\n<li>Barium nitrate (Ba(NO\u2083)\u2082) and sodium phosphate (NaPO\u2084) react to form barium phosphate (Ba\u2083(PO\u2084)\u2082), which is insoluble in water, and sodium nitrate (NaNO\u2083), which is soluble. The insolubility of barium phosphate leads to its formation as a precipitate.<\/li>\n\n\n\n<li><strong>Conclusion<\/strong>: This reaction occurs due to the formation of an insoluble precipitate (Ba\u2083(PO\u2084)\u2082).<\/li>\n<\/ul>\n\n\n\n<p><strong>d) BiCl\u2083 + 3NaOH \u2192 Bi(OH)\u2083 + 3NaCl<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type<\/strong>: Precipitation reaction.<\/li>\n\n\n\n<li>Bismuth chloride (BiCl\u2083) reacts with sodium hydroxide (NaOH). The product bismuth hydroxide (Bi(OH)\u2083) is insoluble in water and precipitates out, while sodium chloride (NaCl) remains soluble.<\/li>\n\n\n\n<li><strong>Conclusion<\/strong>: This reaction occurs due to the formation of an insoluble precipitate (Bi(OH)\u2083).<\/li>\n<\/ul>\n\n\n\n<p>In summary:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>a)<\/strong> results in water, <strong>b)<\/strong> produces gas (CO\u2082), <strong>c)<\/strong> produces a precipitate (Ba\u2083(PO\u2084)\u2082), and <strong>d)<\/strong> forms a precipitate (Bi(OH)\u2083). These are all valid double displacement reactions based on the criteria of precipitate formation, gas production, or water formation.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Using the criteria for double displacement reactions and the solubility table b- KOH+HCl? c-CaCO3 + HCl ? d- Ba(NO3)2+NmPO1-&gt; e- BiCl3+ NaOH ? The correct answer and explanation is : In double displacement reactions, also known as metathesis reactions, two ionic compounds exchange their ions to form new products. The key criteria for determining whether [&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-209289","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/209289","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=209289"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/209289\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=209289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=209289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=209289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}