{"id":260573,"date":"2025-07-19T15:17:41","date_gmt":"2025-07-19T15:17:41","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=260573"},"modified":"2025-07-19T15:17:43","modified_gmt":"2025-07-19T15:17:43","slug":"c%e2%82%86h%e2%82%81%e2%82%84-o%e2%82%82-%e2%86%92-co%e2%82%82-h%e2%82%82o","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/19\/c%e2%82%86h%e2%82%81%e2%82%84-o%e2%82%82-%e2%86%92-co%e2%82%82-h%e2%82%82o\/","title":{"rendered":"-C\u2086H\u2081\u2084 +- O\u2082 \u2192 CO\u2082 + – H\u2082O"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

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

Here is the correctly balanced chemical equation:<\/p>\n\n\n\n

2 C\u2086H\u2081\u2084 + 19 O\u2082 \u2192 12 CO\u2082 + 14 H\u2082O<\/strong><\/p>\n\n\n\n

This equation represents the complete combustion of hexane (C\u2086H\u2081\u2084), a type of hydrocarbon. Balancing a chemical equation is essential as it must adhere to the law of conservation of mass, which states that atoms are neither created nor destroyed during a chemical reaction. Therefore, the number of atoms for each element must be identical on both the reactant (left) and product (right) sides of the equation.<\/p>\n\n\n\n

The process to achieve this balance involves adjusting the stoichiometric coefficients, which are the numbers placed in front of each chemical formula.<\/p>\n\n\n\n

    \n
  1. Balance Carbon (C):<\/strong>\u00a0We begin with the most complex molecule, C\u2086H\u2081\u2084. There are 6 carbon atoms on the reactant side. To balance this, we place a coefficient of 6 in front of CO\u2082 on the product side, giving us 6 carbon atoms there as well.
    C\u2086H\u2081\u2084 + O\u2082 \u2192 6 CO\u2082 + H\u2082O<\/li>\n\n\n\n
  2. Balance Hydrogen (H):<\/strong>\u00a0Next, we balance hydrogen. The reactant C\u2086H\u2081\u2084 contains 14 hydrogen atoms. On the product side, each water molecule (H\u2082O) has 2 hydrogen atoms. To get 14 hydrogen atoms, we need 7 water molecules (7 x 2 = 14). So, we place a 7 in front of H\u2082O.
    C\u2086H\u2081\u2084 + O\u2082 \u2192 6 CO\u2082 + 7 H\u2082O<\/li>\n\n\n\n
  3. Balance Oxygen (O):<\/strong>\u00a0Now, we balance the oxygen atoms. On the product side, we have 6 CO\u2082 molecules, which contain 12 oxygen atoms (6 x 2), and 7 H\u2082O molecules, which contain 7 oxygen atoms (7 x 1). This gives a total of 19 oxygen atoms on the product side. To get 19 oxygen atoms on the reactant side from O\u2082, we would need a coefficient of 19\/2, since oxygen exists as a diatomic molecule.
    C\u2086H\u2081\u2084 + (19\/2) O\u2082 \u2192 6 CO\u2082 + 7 H\u2082O<\/li>\n\n\n\n
  4. Use Whole Numbers:<\/strong>\u00a0By convention, chemical equations use whole number coefficients. To eliminate the fraction, we multiply every coefficient in the entire equation by the denominator, which is 2. This gives us the final, correctly balanced equation:
    2 C\u2086H\u2081\u2084 + 19 O\u2082 \u2192 12 CO\u2082 + 14 H\u2082O<\/strong><\/li>\n<\/ol>\n\n\n\n
    \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

    The Correct Answer and Explanation is: Here is the correctly balanced chemical equation: 2 C\u2086H\u2081\u2084 + 19 O\u2082 \u2192 12 CO\u2082 + 14 H\u2082O This equation represents the complete combustion of hexane (C\u2086H\u2081\u2084), a type of hydrocarbon. Balancing a chemical equation is essential as it must adhere to the law of conservation of mass, which […]<\/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-260573","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/260573","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=260573"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/260573\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=260573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=260573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=260573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}