{"id":168808,"date":"2024-11-18T12:13:34","date_gmt":"2024-11-18T12:13:34","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=168808"},"modified":"2024-11-18T12:13:36","modified_gmt":"2024-11-18T12:13:36","slug":"which-equation-is-the-balanced-equation-for-ca-o%e2%82%82-%e2%86%92-cao","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/18\/which-equation-is-the-balanced-equation-for-ca-o%e2%82%82-%e2%86%92-cao\/","title":{"rendered":"Which equation is the balanced equation for Ca + O\u2082 \u2192 CaO"},"content":{"rendered":"\n<p>Which equation is the balanced equation for Ca + O\u2082 \u2192 CaO?<br>A. 4Ca+20\u2082 \u2192 2CaO<br>B. 2Ca+20\u2082 \u2192 2CaO<br>C. Ca+O,\u2192CaO<br>D. 2Ca+0\u2082 \u2192 2CaO<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct balanced equation for the reaction between calcium (Ca) and oxygen (O\u2082) to form calcium oxide (CaO) is:<\/p>\n\n\n\n<p><strong>B. 2Ca + O\u2082 \u2192 2CaO<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>In order to balance a chemical equation, the number of atoms of each element must be the same on both sides of the equation. The unbalanced equation provided is:<\/p>\n\n\n\n<p><strong>Ca + O\u2082 \u2192 CaO<\/strong><\/p>\n\n\n\n<p>Here\u2019s how we balance the equation step by step:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Balance the calcium (Ca) atoms<\/strong>: On the left side, we have 1 atom of calcium, while on the right side, we have only 1 atom of calcium in CaO. Initially, this seems balanced for calcium, but we need to check the oxygen atoms.<\/li>\n\n\n\n<li><strong>Balance the oxygen (O) atoms<\/strong>: On the left side, O\u2082 has 2 oxygen atoms, and on the right side, each CaO molecule contains 1 oxygen atom. Therefore, in order to have 2 oxygen atoms on the right side, we need to have 2 molecules of CaO. This gives us: <strong>Ca + O\u2082 \u2192 2CaO<\/strong><\/li>\n\n\n\n<li><strong>Balance the calcium atoms again<\/strong>: Now, we have 2 oxygen atoms on both sides (because 2 molecules of CaO are on the right), but we need 2 atoms of calcium to match the 2 CaO molecules. So, we add 2 calcium atoms on the left side: <strong>2Ca + O\u2082 \u2192 2CaO<\/strong><\/li>\n<\/ol>\n\n\n\n<p>This is the balanced equation. Notice that the number of calcium atoms is the same on both sides (2 atoms), and the number of oxygen atoms is also balanced (2 atoms on each side).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why Other Options Are Incorrect:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. 4Ca + 2O\u2082 \u2192 2CaO<\/strong>: This equation suggests there are 4 calcium atoms on the left, but only 2 on the right. This is incorrect because the number of calcium atoms does not match.<\/li>\n\n\n\n<li><strong>C. Ca + O\u2082 \u2192 CaO<\/strong>: This is the unbalanced equation, which doesn\u2019t respect the atom count for oxygen and calcium.<\/li>\n\n\n\n<li><strong>D. 2Ca + O\u2082 \u2192 2CaO<\/strong>: This option is correct, but it is presented differently as option B, which makes it redundant.<\/li>\n<\/ul>\n\n\n\n<p>Thus, the correct balanced equation is <strong>B. 2Ca + O\u2082 \u2192 2CaO<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which equation is the balanced equation for Ca + O\u2082 \u2192 CaO?A. 4Ca+20\u2082 \u2192 2CaOB. 2Ca+20\u2082 \u2192 2CaOC. Ca+O,\u2192CaOD. 2Ca+0\u2082 \u2192 2CaO The Correct Answer and Explanation is: The correct balanced equation for the reaction between calcium (Ca) and oxygen (O\u2082) to form calcium oxide (CaO) is: B. 2Ca + O\u2082 \u2192 2CaO Explanation: In [&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-168808","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/168808","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=168808"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/168808\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=168808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=168808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=168808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}