{"id":2614,"date":"2026-05-18T16:53:02","date_gmt":"2026-05-18T07:53:02","guid":{"rendered":"https:\/\/training.contentsda.kr\/?post_type=courses&p=2614"},"modified":"2026-05-18T07:53:03","modified_gmt":"2026-05-18T07:53:03","slug":"metal-non-metal","status":"publish","type":"courses","link":"https:\/\/training.contentsda.kr\/ne\/courses\/metal-non-metal\/","title":{"rendered":"\u0927\u093e\u0924\u0941 \u0930 \u0917\u0948\u0930-\u0927\u093e\u0924\u0941"},"content":{"rendered":"

he process of detecting metals using a combination of magnetism, hydrochloric acid, and checking for brittleness involves a series of tests to identify specific metal properties. This set of procedures is commonly employed in basic qualitative analysis of metals.<\/p>\n

    \n
  1. Magnetism Test:<\/strong>\n
      \n
    • Objective:<\/strong> To determine if the metal is magnetic.<\/li>\n
    • Procedure:<\/strong> Pass a magnet over the surface of the metal.<\/li>\n
    • Observation:<\/strong>\n
        \n
      • Magnetic Response:<\/strong> Some metals, such as iron, nickel, and cobalt, exhibit magnetic properties and will be attracted to the magnet.<\/li>\n
      • Non-magnetic Response:<\/strong> Metals like aluminum, copper, and zinc are typically not attracted to the magnet.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
      • Hydrochloric Acid Test:<\/strong>\n
          \n
        • Objective:<\/strong> To identify metals that react with hydrochloric acid.<\/li>\n
        • Procedure:<\/strong> Place a small amount of hydrochloric acid (HCl) on the metal.<\/li>\n
        • Observation:<\/strong>\n
            \n
          • Fizzing\/Bubbling:<\/strong> Metals like zinc, aluminum, and magnesium will react with hydrochloric acid, producing bubbles of hydrogen gas.<\/li>\n
          • No Reaction:<\/strong> Some metals, such as copper or gold, do not react with hydrochloric acid.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
          • Brittleness Test:<\/strong>\n
              \n
            • Objective:<\/strong> To assess the metal’s brittleness.<\/li>\n
            • Procedure:<\/strong> Gently bend or attempt to deform the metal.<\/li>\n
            • Observation:<\/strong>\n
                \n
              • Brittle Response:<\/strong> Some metals, like cast iron or certain alloys, may exhibit brittleness, breaking or cracking when bent.<\/li>\n
              • Ductile Response:<\/strong> Metals such as copper and gold are typically ductile and malleable, meaning they deform without breaking easily.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                It’s important to note that these qualitative tests provide preliminary information about the potential identity of a metal. Additionally, safety precautions should be taken when working with acids, and proper disposal methods should be followed.<\/p>","protected":false},"excerpt":{"rendered":"

                he process of detecting metals using a combination of magnetism, hydrochloric acid, and checking for brittleness involves a series of tests to identify specific metal properties. This set of procedures is commonly employed in basic qualitative analysis of metals. Magnetism Test: Objective: To determine if the metal is magnetic. Procedure: Pass a magnet over the […]<\/p>\n","protected":false},"author":1,"featured_media":3222,"template":"","course-category":[61,60],"course-tag":[],"class_list":["post-2614","courses","type-courses","status-publish","has-post-thumbnail","hentry","course-category-cardboard","course-category-webgl","pmpro-has-access"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses"}],"about":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/types\/courses"}],"author":[{"embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2614\/revisions"}],"predecessor-version":[{"id":2615,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2614\/revisions\/2615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/media\/3222"}],"wp:attachment":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/media?parent=2614"}],"wp:term":[{"taxonomy":"course-category","embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/course-category?post=2614"},{"taxonomy":"course-tag","embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/course-tag?post=2614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}