{"id":248841,"date":"2025-07-08T19:06:44","date_gmt":"2025-07-08T19:06:44","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=248841"},"modified":"2025-07-08T19:06:46","modified_gmt":"2025-07-08T19:06:46","slug":"predict-whether-each-of-the-following-ionic-compounds-is-soluble-or-insoluble-in-water","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/08\/predict-whether-each-of-the-following-ionic-compounds-is-soluble-or-insoluble-in-water\/","title":{"rendered":"Predict whether each of the following ionic compounds is soluble or insoluble in water"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Predict whether each of the following ionic compounds is soluble or insoluble in water: Drag the appropriate items to their respective bins. HgCl2 PbCl2 KOH Ca(NO3)2 (NH4)2S Soluble Insoluble<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/image-323.png\" alt=\"\" class=\"wp-image-248842\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><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 class=\"wp-block-paragraph\">Based on the general solubility rules for ionic compounds in water, here is the correct classification:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Soluble<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>KOH<\/li>\n\n\n\n<li>Ca(NO\u2083)\u2082<\/li>\n\n\n\n<li>(NH\u2084)\u2082S<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Insoluble<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hg\u2082Cl\u2082<\/li>\n\n\n\n<li>PbCl\u2082<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To determine if an ionic compound is soluble or insoluble in water, we use a set of established solubility guidelines. Let&#8217;s apply these rules to each compound provided.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Soluble Compounds:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>KOH (Potassium hydroxide):<\/strong>\u00a0This compound is soluble. The rule states that all compounds containing a Group 1 alkali metal cation, such as potassium (K\u207a), are soluble in water. This rule takes precedence over the general rule that hydroxides are insoluble.<\/li>\n\n\n\n<li><strong>Ca(NO\u2083)\u2082 (Calcium nitrate):<\/strong>\u00a0This compound is soluble. A key solubility rule is that all compounds containing the nitrate anion (NO\u2083\u207b) are soluble. There are no common exceptions to this rule, making calcium nitrate readily dissolve in water.<\/li>\n\n\n\n<li><strong>(NH\u2084)\u2082S (Ammonium sulfide):<\/strong>\u00a0This compound is soluble. Similar to alkali metal cations, all compounds containing the ammonium cation (NH\u2084\u207a) are soluble in water. This guideline overrides the general rule that most sulfides (S\u00b2\u207b) are insoluble.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Insoluble Compounds:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hg\u2082Cl\u2082 (Mercury(I) chloride):<\/strong>\u00a0This compound is insoluble. While most compounds containing the chloride anion (Cl\u207b) are soluble, there are important exceptions. One of these exceptions is for compounds formed with the mercury(I) ion (Hg\u2082\u00b2\u207a). Therefore, mercury(I) chloride does not dissolve in water.<\/li>\n\n\n\n<li><strong>PbCl\u2082 (Lead(II) chloride):<\/strong>\u00a0This compound is also insoluble. It falls under the same rule as mercury(I) chloride. Chlorides are generally soluble, but lead(II) (Pb\u00b2\u207a) is another one of the specific exceptions. Consequently, lead(II) chloride is considered insoluble in water at standard temperatures.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner8-329.jpeg\" alt=\"\" class=\"wp-image-248843\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Predict whether each of the following ionic compounds is soluble or insoluble in water: Drag the appropriate items to their respective bins. HgCl2 PbCl2 KOH Ca(NO3)2 (NH4)2S Soluble Insoluble The Correct Answer and Explanation is: Based on the general solubility rules for ionic compounds in water, here is the correct classification: Soluble Insoluble Explanation To [&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-248841","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/248841","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=248841"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/248841\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=248841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=248841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=248841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}