{"id":20678,"date":"2024-11-12T23:34:19","date_gmt":"2024-11-13T02:34:19","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=20678"},"modified":"2024-11-12T23:34:49","modified_gmt":"2024-11-13T02:34:49","slug":"questao-116-enem-2024","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-116-enem-2024\/","title":{"rendered":"Quest\u00e3o 116 \u2013 ENEM 2024"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">O magn\u00e9sio met\u00e1lico utilizado em ligas leves \u00e9 produzido em um processo que envolve v\u00e1rias etapas e utiliza \u00e1gua do mar como mat\u00e9ria-prima. A primeira etapa desse processo consiste na rea\u00e7\u00e3o entre o \u00edon Mg<sup>2+<\/sup> e hidr\u00f3xido de c\u00e1lcio, Ca(OH)<sub>2<\/sub>, obtendo uma mistura que cont\u00e9m hidr\u00f3xido de magn\u00e9sio, pouco sol\u00favel, e \u00edons Ca<sup>2+<\/sup>, de acordo com a equa\u00e7\u00e3o qu\u00edmica:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"474\" height=\"54\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/11\/image-37.png\" alt=\"\" class=\"wp-image-20679 lazyload\" title=\"\" data-srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/11\/image-37.png 474w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/11\/image-37-300x34.png 300w\" data-sizes=\"(max-width: 474px) 100vw, 474px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 474px; --smush-placeholder-aspect-ratio: 474\/54;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00a0<\/strong>O m\u00e9todo adequado para separar o Mg(OH)<sub>2<\/sub> dessa mistura \u00e9 a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A) filtra\u00e7\u00e3o.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B) cata\u00e7\u00e3o.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C) destila\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D) dissolu\u00e7\u00e3o.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E) evapora\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size wp-block-paragraph\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao analisar a rea\u00e7\u00e3o, observa-se a forma\u00e7\u00e3o de um composto insol\u00favel, o Mg(OH)<sub>2 <\/sub>(hidr\u00f3xido de magn\u00e9sio). Diante disso, conclui-se que o m\u00e9todo de separa\u00e7\u00e3o mais adequado \u00e9 a filtra\u00e7\u00e3o, j\u00e1 que o composto insol\u00favel ficar\u00e1 retido no filtro, enquanto os \u00edons sol\u00faveis passar\u00e3o atrav\u00e9s dele.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alternativa A<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O magn\u00e9sio met\u00e1lico utilizado em ligas leves \u00e9 produzido em um processo que envolve v\u00e1rias etapas e utiliza \u00e1gua do mar como mat\u00e9ria-prima. A primeira etapa desse processo consiste na rea\u00e7\u00e3o entre o \u00edon Mg2+ e hidr\u00f3xido de c\u00e1lcio, Ca(OH)2, obtendo uma mistura que cont\u00e9m hidr\u00f3xido de magn\u00e9sio, pouco sol\u00favel, e \u00edons Ca2+, de acordo [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151,17],"tags":[],"area-do-conhecimento":[116,120],"assunto":[],"class_list":["post-20678","post","type-post","status-publish","format-standard","hentry","category-2024-questoes-enem-regular","category-questoes-do-enem","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-quimica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/20678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=20678"}],"version-history":[{"count":2,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/20678\/revisions"}],"predecessor-version":[{"id":20681,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/20678\/revisions\/20681"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=20678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=20678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=20678"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=20678"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=20678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}