{"id":236926,"date":"2025-06-16T16:15:47","date_gmt":"2025-06-16T16:15:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=236926"},"modified":"2025-06-16T16:15:49","modified_gmt":"2025-06-16T16:15:49","slug":"write-the-formulas-for-the-following-ionic-compounds","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/16\/write-the-formulas-for-the-following-ionic-compounds\/","title":{"rendered":"Write the formulas for the following ionic compounds"},"content":{"rendered":"\n

Write the formulas for the following ionic compounds: 12. potassium dichromate 13. gold(III) oxide 14. aluminum periodate 15. barium nitrite 16. silver carbonate 17. lithium sulfite 18. zinc hydrogen carbonate 19. iron(III) hydroxide 20. ammonium phosphate 21. copper(II) bromite 22. SO2 23. N2S 24. BF3 25. PBr3 26. SiO2 27. SF6 28. NO2 29. nitrogen trichloride 30. dinitrogen trioxide 31. phosphorus pentafluoride 32. diboron tetrahydride<\/p>\n\n\n\n

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

Here are the correct formulas for each compound:<\/p>\n\n\n\n

Ionic Compounds:<\/strong><\/p>\n\n\n\n

    \n
  1. Potassium dichromate<\/strong> \u2013 K\u2082Cr\u2082O\u2087<\/li>\n\n\n\n
  2. Gold(III) oxide<\/strong> \u2013 Au\u2082O\u2083<\/li>\n\n\n\n
  3. Aluminum periodate<\/strong> \u2013 Al(IO\u2084)\u2083<\/li>\n\n\n\n
  4. Barium nitrite<\/strong> \u2013 Ba(NO\u2082)\u2082<\/li>\n\n\n\n
  5. Silver carbonate<\/strong> \u2013 Ag\u2082CO\u2083<\/li>\n\n\n\n
  6. Lithium sulfite<\/strong> \u2013 Li\u2082SO\u2083<\/li>\n\n\n\n
  7. Zinc hydrogen carbonate<\/strong> \u2013 Zn(HCO\u2083)\u2082<\/li>\n\n\n\n
  8. Iron(III) hydroxide<\/strong> \u2013 Fe(OH)\u2083<\/li>\n\n\n\n
  9. Ammonium phosphate<\/strong> \u2013 (NH\u2084)\u2083PO\u2084<\/li>\n\n\n\n
  10. Copper(II) bromite<\/strong> \u2013 Cu(BrO\u2082)\u2082<\/li>\n<\/ol>\n\n\n\n

    Covalent (Molecular) Compounds:<\/strong><\/p>\n\n\n\n

      \n
    1. SO\u2082<\/strong> \u2013 sulfur dioxide<\/li>\n\n\n\n
    2. N\u2082S<\/strong> \u2013 dinitrogen monosulfide<\/li>\n\n\n\n
    3. BF\u2083<\/strong> \u2013 boron trifluoride<\/li>\n\n\n\n
    4. PBr\u2083<\/strong> \u2013 phosphorus tribromide<\/li>\n\n\n\n
    5. SiO\u2082<\/strong> \u2013 silicon dioxide<\/li>\n\n\n\n
    6. SF\u2086<\/strong> \u2013 sulfur hexafluoride<\/li>\n\n\n\n
    7. NO\u2082<\/strong> \u2013 nitrogen dioxide<\/li>\n\n\n\n
    8. Nitrogen trichloride<\/strong> \u2013 NCl\u2083<\/li>\n\n\n\n
    9. Dinitrogen trioxide<\/strong> \u2013 N\u2082O\u2083<\/li>\n\n\n\n
    10. Phosphorus pentafluoride<\/strong> \u2013 PF\u2085<\/li>\n\n\n\n
    11. Diboron tetrahydride<\/strong> \u2013 B\u2082H\u2084<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n

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

      Chemical compounds are named using different systems based on the type of bonding. Ionic compounds consist of metals and nonmetals, where electrons are transferred, while covalent (or molecular) compounds consist of nonmetals sharing electrons.<\/p>\n\n\n\n

      For ionic compounds<\/strong>, the metal forms a cation (positive ion) and the nonmetal or polyatomic group forms an anion (negative ion). The charges must balance to write the correct formula. For example, potassium dichromate<\/strong> is written as K\u2082Cr\u2082O\u2087 because potassium (K\u207a) has a +1 charge, and dichromate (Cr\u2082O\u2087\u00b2\u207b) has a -2 charge. Two K\u207a ions are needed to balance one Cr\u2082O\u2087\u00b2\u207b ion.<\/p>\n\n\n\n

      In compounds like gold(III) oxide<\/strong>, the Roman numeral indicates the charge on the metal cation (Au\u00b3\u207a), and oxide is O\u00b2\u207b, so the formula becomes Au\u2082O\u2083.<\/p>\n\n\n\n

      Covalent compounds<\/strong> use Greek prefixes to indicate the number of atoms. For example, dinitrogen trioxide<\/strong> (N\u2082O\u2083) uses \u201cdi-\u201d for two nitrogen atoms and \u201ctri-\u201d for three oxygen atoms.<\/p>\n\n\n\n

      It’s important to note that molecular compounds do not require charge balancing like ionic ones. Sulfur hexafluoride (SF\u2086)<\/strong> simply means one sulfur atom bonded to six fluorine atoms.<\/p>\n\n\n\n

      Correct naming and formula writing involve understanding the periodic table, ion charges, and naming conventions, all of which ensure clear communication in chemistry.<\/p>\n\n\n\n

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

      Write the formulas for the following ionic compounds: 12. potassium dichromate 13. gold(III) oxide 14. aluminum periodate 15. barium nitrite 16. silver carbonate 17. lithium sulfite 18. zinc hydrogen carbonate 19. iron(III) hydroxide 20. ammonium phosphate 21. copper(II) bromite 22. SO2 23. N2S 24. BF3 25. PBr3 26. SiO2 27. SF6 28. NO2 29. nitrogen […]<\/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-236926","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/236926","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=236926"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/236926\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=236926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=236926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=236926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}