{"id":186453,"date":"2025-01-25T07:54:09","date_gmt":"2025-01-25T07:54:09","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=186453"},"modified":"2025-01-25T07:54:11","modified_gmt":"2025-01-25T07:54:11","slug":"what-is-the-correct-formula-for-iron-iii-sulfide","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/25\/what-is-the-correct-formula-for-iron-iii-sulfide\/","title":{"rendered":"What is the correct formula for iron (III) sulfide"},"content":{"rendered":"\n<p>1) What is the correct formula for iron (III) sulfide?<\/p>\n\n\n\n<p>A) Fe2S<sub>2<\/sub><\/p>\n\n\n\n<p>B) Fe2S<\/p>\n\n\n\n<p>C)&nbsp;FeS<\/p>\n\n\n\n<p>D)&nbsp;FeS2<\/p>\n\n\n\n<p>E) Fe2S3<\/p>\n\n\n\n<p>2) write the balanced COMPLETE ionic equation for the reaction when BaCl<sub>2<\/sub>&nbsp;and Na<sub>2<\/sub>CO<sub>3<\/sub>&nbsp;are mixed in aqueous solution<\/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<h3 class=\"wp-block-heading\">1) Correct formula for iron (III) sulfide:<\/h3>\n\n\n\n<p><strong>Answer: E) Fe\u2082S\u2083<\/strong><\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>Iron (III) sulfide refers to a compound containing iron with a +3 charge (Fe\u00b3\u207a) and sulfide ions with a -2 charge (S\u00b2\u207b). To find the correct formula, we balance the charges by making sure the total positive charge equals the total negative charge.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The charge on one Fe\u00b3\u207a ion is +3, and the charge on one sulfide (S\u00b2\u207b) ion is -2.<\/li>\n\n\n\n<li>To balance the charges, we need two Fe\u00b3\u207a ions (which would give a total positive charge of +6) and three sulfide ions (which would give a total negative charge of -6).<\/li>\n<\/ul>\n\n\n\n<p>Therefore, the formula for iron (III) sulfide is <strong>Fe\u2082S\u2083<\/strong>, which ensures the charges are balanced.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2) Balanced COMPLETE ionic equation for the reaction between BaCl\u2082 and Na\u2082CO\u2083:<\/h3>\n\n\n\n<p>The reaction between barium chloride (BaCl\u2082) and sodium carbonate (Na\u2082CO\u2083) in aqueous solution forms barium carbonate (BaCO\u2083) as a precipitate and sodium chloride (NaCl) in solution.<\/p>\n\n\n\n<p><strong>Step-by-step process:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Write the unbalanced molecular equation:<\/strong> [<br>\\text{BaCl}_2(aq) + \\text{Na}_2\\text{CO}_3(aq) \\rightarrow \\text{BaCO}_3(s) + 2 \\text{NaCl}(aq)<br>]<\/li>\n\n\n\n<li><strong>Write the ionic equation:<\/strong> Since BaCl\u2082 and Na\u2082CO\u2083 are soluble in water, they dissociate into their ions in aqueous solution: [<br>\\text{Ba}^{2+}(aq) + 2 \\text{Cl}^-(aq) + 2 \\text{Na}^+(aq) + \\text{CO}_3^{2-}(aq) \\rightarrow \\text{BaCO}_3(s) + 2 \\text{Na}^+(aq) + 2 \\text{Cl}^-(aq)<br>]<\/li>\n\n\n\n<li><strong>Complete ionic equation:<\/strong> [<br>\\text{Ba}^{2+}(aq) + 2 \\text{Cl}^-(aq) + 2 \\text{Na}^+(aq) + \\text{CO}_3^{2-}(aq) \\rightarrow \\text{BaCO}_3(s) + 2 \\text{Na}^+(aq) + 2 \\text{Cl}^-(aq)<br>]<\/li>\n\n\n\n<li><strong>Identify the spectator ions:<\/strong> Sodium ions (Na\u207a) and chloride ions (Cl\u207b) are present on both sides of the equation and do not participate in the reaction, so they are spectator ions.<\/li>\n\n\n\n<li><strong>Remove the spectator ions to write the net ionic equation:<\/strong> [<br>\\text{Ba}^{2+}(aq) + \\text{CO}_3^{2-}(aq) \\rightarrow \\text{BaCO}_3(s)<br>]<\/li>\n<\/ul>\n\n\n\n<p>This is the balanced <strong>net ionic equation<\/strong> for the reaction.<\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ba\u00b2\u207a and CO\u2083\u00b2\u207b ions<\/strong> combine to form <strong>BaCO\u2083<\/strong>, a solid precipitate, which is the driving force behind the reaction.<\/li>\n\n\n\n<li><strong>Na\u207a and Cl\u207b ions<\/strong> remain in the aqueous solution as spectator ions and do not directly participate in the formation of the precipitate.<\/li>\n<\/ul>\n\n\n\n<p>By writing the complete ionic equation and then eliminating the spectator ions, we arrive at the net ionic equation that reflects the actual chemical change in the reaction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1) What is the correct formula for iron (III) sulfide? A) Fe2S2 B) Fe2S C)&nbsp;FeS D)&nbsp;FeS2 E) Fe2S3 2) write the balanced COMPLETE ionic equation for the reaction when BaCl2&nbsp;and Na2CO3&nbsp;are mixed in aqueous solution The Correct Answer and Explanation is : 1) Correct formula for iron (III) sulfide: Answer: E) Fe\u2082S\u2083 Explanation: Iron (III) [&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-186453","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186453","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=186453"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186453\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=186453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=186453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=186453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}