MATERIALES B2

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0 [{"id":567180,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los materiales \u2026\u2026\u2026\u2026\u2026\u2026... abarcan una gran variedad de materiales, tradicionales y modernos. ","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567174,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"El .................. se lo emplea desde la antig\u00fcedad en la fabricaci\u00f3n del vidrio y de la cer\u00e1mica, y hoy se usa tambi\u00e9n en la fabricaci\u00f3n de transistores, circuitos integrados, c\u00e9lulas solares, cristales de cuarzo para relojes, etc.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567175,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los materiales \u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026.. son los que (en estado bruto, o sujetos a un proceso de purificaci\u00f3n) por ejemplo: hierro, madera, cobre, petr\u00f3leo, agua, m\u00e1rmol, arena, etc..","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567181,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los materiales \u2026\u2026\u2026\u2026\u2026\u2026\u2026. cristalinos se obtienen a partir de una mezcla que se sintetiza calent\u00e1ndola a una temperatura por debajo del punto de fusi\u00f3n del material, el que se aglutina y endurece.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567170,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los \u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026., es interesante clasificarlos, seg\u00fan se tenga en cuenta sus or\u00edgenes, sus propiedades, su naturaleza, su estructura, etc.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567177,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los metales ferrosos se basan en el \u2026\u2026\u2026\u2026\u2026... Podemos decir que m\u00e1s del 90% de los materiales met\u00e1licos que utiliza el hombre son aleaciones ferrosas.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567169,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026.. se puede considerar que abarca los materiales de base requeridos para la fabricaci\u00f3n de un producto.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567179,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"las aleaciones de \u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026., si bien m\u00e1s caras, tienen densidades m\u00e1s bajas que las de aluminio y se emplean en estructuras aeroespaciales;","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567182,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los \u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026. obtenidos artificialmente, por s\u00edntesis, mediante la uni\u00f3n qu\u00edmica de mon\u00f3meros, o por reacciones de condensaci\u00f3n entre dos o m\u00e1s productos qu\u00edmicos.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567173,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"El primer grupo de los \u2026\u2026\u2026\u2026\u2026\u2026.. consta de gases (gases nobles, ox\u00edgeno, nitr\u00f3geno, hidr\u00f3geno, cloro, fl\u00faor), un l\u00edquido (bromo) y varios s\u00f3lidos (carbono, f\u00f3sforo, azufre, iodo).","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567183,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los \u2026\u2026\u2026\u2026\u2026\u2026. se usan en la elaboraci\u00f3n de innumerables productos industriales, as\u00ed como substitutos de muchos productos naturales: madera, caucho, cuero, etc. ","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567176,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Desde una \u00f3ptica ingenieril, los materiales t\u00e9cnicos se pueden clasificar, seg\u00fan su estructura (at\u00f3mica y\/o \u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026..)","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567178,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Las adiciones de tungsteno producen un \u2026\u2026\u2026\u2026.. muy duro usado en la fabricaci\u00f3n de herramientas.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567171,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"Los \u00e1tomos de los \u2026\u2026\u2026\u2026\u2026\u2026\u2026.. se unen por enlaces que permiten electrones libres, lo que explica su conductividad el\u00e9ctrica y t\u00e9rmica.","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":567172,"quiz_id":"27762","answer_id":null,"answerType_id":"0","created_at":"2018-09-17 01:06:56","updated_at":"2018-09-17 01:06:56","questionName":"en funci\u00f3n del peso, los metales se pueden subdividir en dos: grupos: metales ligeros y metales \u2026\u2026\u2026\u2026\u2026..","questionTimeSeconds":"30","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null}]
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Los materiales ………………... abarcan una gran variedad de materiales, tradicionales y modernos.

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