{"id":38487,"date":"2025-06-26T10:07:42","date_gmt":"2025-06-26T10:07:42","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=38487"},"modified":"2025-06-26T10:07:44","modified_gmt":"2025-06-26T10:07:44","slug":"which-substance-is-the-base-in-the-reaction","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/which-substance-is-the-base-in-the-reaction\/","title":{"rendered":"Which substance is the base in the reaction?"},"content":{"rendered":"\n<p>Look at the reaction below: H2SO4(aq) + Ca(OH)2(aq) \u00e2\u2020\u2019 CaSO4(aq) + 2H2O(l) Which substance is the base in the reaction? 2H2O(l) H2SO4(aq) CaSO4(aq) Ca(OH)2(aq)<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Correct Answer: Ca(OH)\u2082(aq)<\/strong><\/p>\n\n\n\n<p>In the given chemical reaction:<\/p>\n\n\n\n<p><strong>H\u2082SO\u2084(aq) + Ca(OH)\u2082(aq) \u2192 CaSO\u2084(aq) + 2H\u2082O(l)<\/strong><\/p>\n\n\n\n<p>The substance that acts as the base is <strong>Ca(OH)\u2082(aq)<\/strong>, which is <strong>calcium hydroxide<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>In acid-base chemistry, substances are identified as acids or bases based on their ability to donate or accept protons (H\u207a ions). According to the <strong>Br\u00f8nsted-Lowry<\/strong> theory:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An <strong>acid<\/strong> is a substance that <strong>donates protons<\/strong>.<\/li>\n\n\n\n<li>A <strong>base<\/strong> is a substance that <strong>accepts protons<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>H\u2082SO\u2084<\/strong>, or <strong>sulfuric acid<\/strong>, is a strong acid. It donates hydrogen ions (H\u207a) when dissolved in water. Specifically, H\u2082SO\u2084 donates two H\u207a ions because it is a <strong>diprotic acid<\/strong>.<\/p>\n\n\n\n<p><strong>Ca(OH)\u2082<\/strong>, or <strong>calcium hydroxide<\/strong>, is a strong base. It releases hydroxide ions (OH\u207b) when dissolved in water. These OH\u207b ions can combine with H\u207a ions from the acid to form water (H\u2082O).<\/p>\n\n\n\n<p>In this neutralization reaction:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u2082SO\u2084 provides H\u207a ions.<\/li>\n\n\n\n<li>Ca(OH)\u2082 provides OH\u207b ions.<\/li>\n\n\n\n<li>The H\u207a and OH\u207b combine to form water (2H\u2082O).<\/li>\n\n\n\n<li>The remaining ions, Ca\u00b2\u207a from calcium hydroxide and SO\u2084\u00b2\u207b from sulfuric acid, form the salt <strong>CaSO\u2084<\/strong>, or <strong>calcium sulfate<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, <strong>Ca(OH)\u2082<\/strong> is the base because it provides hydroxide ions that react with hydrogen ions from the acid. The products of this neutralization reaction are a <strong>salt<\/strong> (CaSO\u2084) and <strong>water<\/strong>. This is a typical reaction between a strong acid and a strong base.<\/p>\n\n\n\n<p>In conclusion, calcium hydroxide acts as the base in this reaction due to its role in accepting protons and neutralizing the acid.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"852\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1033.jpeg\" alt=\"\" class=\"wp-image-38496\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1033.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1033-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-1033-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Look at the reaction below: H2SO4(aq) + Ca(OH)2(aq) \u00e2\u2020\u2019 CaSO4(aq) + 2H2O(l) Which substance is the base in the reaction? 2H2O(l) H2SO4(aq) CaSO4(aq) Ca(OH)2(aq) The Correct Answer and Explanation is: Correct Answer: Ca(OH)\u2082(aq) In the given chemical reaction: H\u2082SO\u2084(aq) + Ca(OH)\u2082(aq) \u2192 CaSO\u2084(aq) + 2H\u2082O(l) The substance that acts as the base is Ca(OH)\u2082(aq), which [&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-38487","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38487","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=38487"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38487\/revisions"}],"predecessor-version":[{"id":38497,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/38487\/revisions\/38497"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=38487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=38487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=38487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}