{"id":26612,"date":"2025-06-19T16:27:16","date_gmt":"2025-06-19T16:27:16","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=26612"},"modified":"2025-06-19T16:27:18","modified_gmt":"2025-06-19T16:27:18","slug":"write-down-the-chemical-formula-of-calcium-nitrate","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/write-down-the-chemical-formula-of-calcium-nitrate\/","title":{"rendered":"Write down the chemical formula of calcium nitrate"},"content":{"rendered":"\n

Write down the chemical formula of calcium nitrate. (Valency: Ca = 2; NO3 = 1)<\/p>\n\n\n\n

The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n

The chemical formula of calcium nitrate is Ca(NO\u2083)\u2082<\/strong>.<\/p>\n\n\n\n

\n\n\n\n

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

Calcium nitrate is an ionic compound formed from calcium ions and nitrate ions. To write its correct chemical formula, you need to consider the valencies (charges) of the ions involved.<\/p>\n\n\n\n

    \n
  • Calcium ion (Ca\u00b2\u207a):<\/strong> Calcium is an alkaline earth metal in Group 2 of the periodic table, and it forms a cation with a charge of +2.<\/li>\n\n\n\n
  • Nitrate ion (NO\u2083\u207b):<\/strong> The nitrate ion is a polyatomic ion with a charge of -1.<\/li>\n<\/ul>\n\n\n\n

    Since calcium has a valency of 2 (Ca\u00b2\u207a) and nitrate has a valency of 1 (NO\u2083\u207b), you need two nitrate ions to balance one calcium ion to create a neutral compound.<\/p>\n\n\n\n

    Balancing charges:<\/strong><\/p>\n\n\n\n

      \n
    • One Ca\u00b2\u207a ion contributes +2 charge.<\/li>\n\n\n\n
    • Two NO\u2083\u207b ions contribute 2 \u00d7 (-1) = -2 charge.<\/li>\n<\/ul>\n\n\n\n

      The total charge in the compound is:<\/p>\n\n\n\n

      +2 (from Ca\u00b2\u207a) + (-2) (from 2 NO\u2083\u207b) = 0<\/p>\n\n\n\n

      This charge balance means the compound is electrically neutral, which is required for stable ionic compounds.<\/p>\n\n\n\n

      Thus, the formula combines one calcium ion with two nitrate ions, leading to the formula: Ca(NO3)2\\boxed{\\text{Ca(NO}_3)_2}<\/p>\n\n\n\n

      \n\n\n\n

      Additional Notes:<\/h3>\n\n\n\n
        \n
      • The parentheses around NO\u2083 indicate that the nitrate ion is a polyatomic ion and that two whole nitrate ions are needed.<\/li>\n\n\n\n
      • Without the parentheses, writing CaNO\u2083\u2082 would be confusing because it would suggest one calcium, one nitrogen, and three oxygens, plus an extra 2 oxygens, which isn’t chemically accurate.<\/li>\n\n\n\n
      • Calcium nitrate is commonly used as a fertilizer because it provides both calcium and nitrogen, essential nutrients for plants.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        Write down the chemical formula of calcium nitrate. (Valency: Ca = 2; NO3 = 1) The correct answer and explanation is: The chemical formula of calcium nitrate is Ca(NO\u2083)\u2082. Explanation: Calcium nitrate is an ionic compound formed from calcium ions and nitrate ions. To write its correct chemical formula, you need to consider the valencies […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26612","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=26612"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26612\/revisions"}],"predecessor-version":[{"id":26613,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/26612\/revisions\/26613"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=26612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=26612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=26612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}