{"id":231665,"date":"2025-06-11T09:41:43","date_gmt":"2025-06-11T09:41:43","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=231665"},"modified":"2025-06-11T09:41:46","modified_gmt":"2025-06-11T09:41:46","slug":"which-pairs-of-reactants-will-result-in-a-chemical-reaction-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/11\/which-pairs-of-reactants-will-result-in-a-chemical-reaction-2\/","title":{"rendered":"Which pairs of reactants will result in a chemical reaction"},"content":{"rendered":"\n

Which pairs of reactants will result in a chemical reaction? Check all that apply. * \\checkmark Mn(s) + AgClO
(aq) Sn(s) + MgCl
(aq) \\checkmark Pt(s) + CoBr
(aq) Zn(s) + CuNO
(aq) At least one of your choices is incorrect. A more active metal can displace a less active metal from a compound, but not the other way around. You’ll need to refer to the activity series to determine which metal in the pair is more active.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

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

. Mn(s) + AgClO\u2084(aq)<\/strong> \u2705<\/h3>\n\n\n\n

Manganese (Mn)<\/strong> is above Silver (Ag)<\/strong> in the activity series.
\u2192 Mn is more reactive and will displace Ag\u207a from AgClO\u2084.
\u2705 Reaction occurs.<\/strong><\/p>\n\n\n\n

\n\n\n\n

2. Sn(s) + MgCl\u2082(aq)<\/strong> \u274c<\/h3>\n\n\n\n

Tin (Sn)<\/strong> is below Magnesium (Mg)<\/strong> in the activity series.
\u2192 Sn is less reactive and cannot displace Mg\u00b2\u207a<\/strong> from MgCl\u2082.
\u274c No reaction.<\/strong><\/p>\n\n\n\n

\n\n\n\n

3. Pt(s) + CoBr\u2082(aq)<\/strong> \u274c<\/h3>\n\n\n\n

Platinum (Pt)<\/strong> is below Cobalt (Co)<\/strong> in the activity series.
\u2192 Pt is less reactive and cannot displace Co\u00b2\u207a<\/strong> from CoBr\u2082.
\u274c No reaction.<\/strong><\/p>\n\n\n\n

\n\n\n\n

4. Zn(s) + CuNO\u2083(aq)<\/strong> \u2705<\/h3>\n\n\n\n

Zinc (Zn)<\/strong> is above Copper (Cu)<\/strong> in the activity series.
\u2192 Zn is more reactive and will displace Cu\u00b2\u207a from CuNO\u2083.
\u2705 Reaction occurs.<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u2705 Correct Answers:<\/strong><\/h3>\n\n\n\n
    \n
  • \u2705 Mn(s) + AgClO\u2084(aq)<\/strong><\/li>\n\n\n\n
  • \u2705 Zn(s) + CuNO\u2083(aq)<\/strong><\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n

    \ud83d\udcd8 Explanation:<\/h3>\n\n\n\n

    In single replacement reactions, the activity series of metals<\/strong> is used to predict whether a reaction will occur. Only a metal that is more reactive<\/strong> (higher on the activity series) than the metal ion in the compound can replace it. If it\u2019s less reactive<\/strong>, no displacement occurs, and thus, no reaction<\/strong>. Always consult the activity series before predicting the outcome of such reactions.<\/p>\n\n\n\n

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

    Which pairs of reactants will result in a chemical reaction? Check all that apply. * \\checkmark Mn(s) + AgClO(aq) Sn(s) + MgCl(aq) \\checkmark Pt(s) + CoBr(aq) Zn(s) + CuNO(aq) At least one of your choices is incorrect. A more active metal can displace a less active metal from a compound, but not the other way […]<\/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-231665","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/231665","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=231665"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/231665\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=231665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=231665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=231665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}