{"id":256509,"date":"2025-07-16T09:59:23","date_gmt":"2025-07-16T09:59:23","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=256509"},"modified":"2025-07-16T09:59:26","modified_gmt":"2025-07-16T09:59:26","slug":"write-a-balanced-chemical-equation-for-the-aqueous-reaction-between-barium-hydroxide-and-hydrobromic-acid","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/16\/write-a-balanced-chemical-equation-for-the-aqueous-reaction-between-barium-hydroxide-and-hydrobromic-acid\/","title":{"rendered":"Write a balanced chemical equation for the aqueous reaction between barium hydroxide and hydrobromic acid."},"content":{"rendered":"\n

Write a balanced chemical equation for the aqueous reaction between barium hydroxide and hydrobromic acid. Include physical states. Question options: Ba(OH)2(aq) + 2 HBr(g) \u00e2\u2020\u2019 H2O(l) + BaBr2(s) Ba(OH)2(aq) + 2 HBr(aq) \u00e2\u2020\u2019 2H2O(l) + BaBr2(aq) Ba(OH)2(s) + HBr(aq) \u00e2\u2020\u2019 H2O(l) + BaBr(aq) Ba(OH)2(s) + HBr(g) \u00e2\u2020\u2019 H2O(l) + BaBr(aq)<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answer:
Ba(OH)\u2082(aq) + 2 HBr(aq) \u2192 2 H\u2082O(l) + BaBr\u2082(aq)<\/p>\n\n\n\n

Explanation:<\/p>\n\n\n\n

The reaction between barium hydroxide (Ba(OH)\u2082) and hydrobromic acid (HBr) is a typical acid\u2013base neutralization reaction that occurs in aqueous solution.<\/p>\n\n\n\n

Step-by-Step Analysis:
Nature of Reactants:<\/p>\n\n\n\n

Barium hydroxide is a strong base that fully dissociates in water to produce Ba\u00b2\u207a and 2 OH\u207b ions.<\/p>\n\n\n\n

Ba(OH)\u2082(aq) \u2192 Ba\u00b2\u207a(aq) + 2 OH\u207b(aq)<\/p>\n\n\n\n

Hydrobromic acid is a strong acid, meaning it completely dissociates in water into H\u207a and Br\u207b ions.<\/p>\n\n\n\n

HBr(aq) \u2192 H\u207a(aq) + Br\u207b(aq)<\/p>\n\n\n\n

Reaction Mechanism:<\/p>\n\n\n\n

The H\u207a ions from the acid react with the OH\u207b ions from the base to form water (H\u2082O):<\/p>\n\n\n\n

H\u207a(aq) + OH\u207b(aq) \u2192 H\u2082O(l)<\/p>\n\n\n\n

Since each molecule of Ba(OH)\u2082 produces 2 OH\u207b, it requires 2 moles of HBr to completely neutralize it:<\/p>\n\n\n\n

Ba(OH)\u2082(aq) + 2 HBr(aq) \u2192 2 H\u2082O(l) + BaBr\u2082(aq)<\/p>\n\n\n\n

Physical States:<\/p>\n\n\n\n

Ba(OH)\u2082 is dissolved in water, so it is aqueous (aq).<\/p>\n\n\n\n

HBr is also in aqueous form (aq).<\/p>\n\n\n\n

Water formed is a liquid (l).<\/p>\n\n\n\n

BaBr\u2082, the salt, remains dissolved in water and is aqueous (aq).<\/p>\n\n\n\n

Why Other Options Are Incorrect:<\/p>\n\n\n\n

Option 1: Lists HBr as a gas and BaBr\u2082 as a solid, which does not reflect aqueous reaction conditions.<\/p>\n\n\n\n

Option 3 and 4: Use only 1 mole of HBr and form BaBr, which is not the correct stoichiometry or product (barium forms BaBr\u2082 with two Br\u207b ions).<\/p>\n\n\n\n

Therefore, the balanced chemical equation with correct physical states is:
Ba(OH)\u2082(aq) + 2 HBr(aq) \u2192 2 H\u2082O(l) + BaBr\u2082(aq).<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Write a balanced chemical equation for the aqueous reaction between barium hydroxide and hydrobromic acid. Include physical states. Question options: Ba(OH)2(aq) + 2 HBr(g) \u00e2\u2020\u2019 H2O(l) + BaBr2(s) Ba(OH)2(aq) + 2 HBr(aq) \u00e2\u2020\u2019 2H2O(l) + BaBr2(aq) Ba(OH)2(s) + HBr(aq) \u00e2\u2020\u2019 H2O(l) + BaBr(aq) Ba(OH)2(s) + HBr(g) \u00e2\u2020\u2019 H2O(l) + BaBr(aq) The Correct Answer and Explanation […]<\/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-256509","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256509","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=256509"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256509\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=256509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=256509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=256509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}