{"id":17582,"date":"2025-06-12T13:34:22","date_gmt":"2025-06-12T13:34:22","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=17582"},"modified":"2025-06-12T13:34:24","modified_gmt":"2025-06-12T13:34:24","slug":"what-is-the-net-ionic-equation-of-2h-so42-ca2-2i-caso4-2h-2i","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/what-is-the-net-ionic-equation-of-2h-so42-ca2-2i-caso4-2h-2i\/","title":{"rendered":"What is the net ionic equation of 2H+ + SO42- + Ca2+ + 2I- -> CaSO4 + 2H+ + 2I-"},"content":{"rendered":"\n<p>What is the net ionic equation of 2H+ + SO42- + Ca2+ + 2I- -> CaSO4 + 2H+ + 2I-?<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Net Ionic Equation:<\/strong><\/h3>\n\n\n\n<p>The given reaction is:<\/p>\n\n\n\n<p><strong>2H\u207a + SO\u2084\u00b2\u207b + Ca\u00b2\u207a + 2I\u207b \u2192 CaSO\u2084 + 2H\u207a + 2I\u207b<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1: Cancel Spectator Ions<\/strong><\/h3>\n\n\n\n<p>On both sides of the equation, we see <strong>2H\u207a<\/strong> and <strong>2I\u207b<\/strong>. These ions appear unchanged and do not participate in the actual chemical change. These are <strong>spectator ions<\/strong> and can be canceled out from both sides of the equation.<\/p>\n\n\n\n<p>This simplifies the reaction to:<\/p>\n\n\n\n<p><strong>SO\u2084\u00b2\u207b + Ca\u00b2\u207a \u2192 CaSO\u2084 (s)<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>Correct Net Ionic Equation:<\/strong><\/h3>\n\n\n\n<p>Ca2+(aq)+SO42\u2212(aq)\u2192CaSO4(s)\\boxed{\\text{Ca}^{2+} (aq) + \\text{SO}_4^{2-} (aq) \\rightarrow \\text{CaSO}_4 (s)}<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explanation (Approx. 300 Words):<\/strong><\/h3>\n\n\n\n<p>A <strong>net ionic equation<\/strong> shows only the chemical species involved in the actual chemical change, excluding spectator ions that remain unchanged during the reaction.<\/p>\n\n\n\n<p>In this reaction:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Calcium ion (Ca\u00b2\u207a)<\/strong> and <strong>sulfate ion (SO\u2084\u00b2\u207b)<\/strong> combine to form <strong>calcium sulfate (CaSO\u2084)<\/strong>, a <strong>precipitate<\/strong> (solid).<\/li>\n\n\n\n<li>The other ions present, <strong>H\u207a<\/strong> and <strong>I\u207b<\/strong>, are present on both sides of the equation and remain in aqueous form, not participating in the formation of the precipitate. Thus, they are considered <strong>spectator ions<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>The key concept here is <strong>precipitation<\/strong>. When two aqueous solutions are mixed, if the product is an <strong>insoluble salt<\/strong>, it will precipitate out of solution. According to solubility rules, <strong>most sulfates are soluble<\/strong>, but <strong>calcium sulfate is only slightly soluble<\/strong> and can precipitate under the right conditions.<\/p>\n\n\n\n<p>The original reaction likely takes place in an aqueous solution where soluble ionic compounds dissociate into their respective ions. When Ca\u00b2\u207a and SO\u2084\u00b2\u207b meet, they form a solid CaSO\u2084, removing them from the solution. This is the driving force behind the reaction.<\/p>\n\n\n\n<p>By writing the net ionic equation, we focus on what actually changes in the reaction. The result highlights the <strong>formation of a new substance<\/strong>, CaSO\u2084, while ignoring unchanged ions. This simplification helps chemists understand the <strong>core chemical change<\/strong> and is especially useful when predicting the outcomes of double displacement or precipitation reactions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the net ionic equation of 2H+ + SO42- + Ca2+ + 2I- -> CaSO4 + 2H+ + 2I-? The correct answer and explanation is: Net Ionic Equation: The given reaction is: 2H\u207a + SO\u2084\u00b2\u207b + Ca\u00b2\u207a + 2I\u207b \u2192 CaSO\u2084 + 2H\u207a + 2I\u207b Step 1: Cancel Spectator Ions On both sides of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17582","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=17582"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17582\/revisions"}],"predecessor-version":[{"id":17583,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17582\/revisions\/17583"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=17582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=17582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=17582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}