Correction of the FUVEST Second Phase 2023 Chemistry Test 3:15 Q01 - FUVEST Second Phase 2023 One of the ways to understand the structures of organic molecules is by using models like the ones presented below for the ethane and ethene molecules. 12:42 Q02 - FUVEST Second Phase 2023 Diamond, a crystalline structure of carbon, is the hardest material found in nature. Chewing diamonds would probably break your teeth and ingesting them would cause discomfort. However, there is an extravagant way to ingest a diamond, which is to use it to produce sparkling water, as in the following procedure: 28:48 Q03 - FUVEST Second Phase 2023 In the laboratory, peptides can be synthesized with reagents that promote the bond between different amino acids. EDC is a compound that can be used in aqueous solution for this purpose, as represented below: 44:38 Q04 - FUVEST Second Phase 2023 Recent global events have shown the importance of the supply of nitrogen fertilizers, such as ammonia and urea, for maintaining food security for the world's population. Changes in the availability of natural gas directly impact the production of nitrogen fertilizers. The following reactions show the process of formation of ammonia and urea from natural gas: 59:17 Q05 - FUVEST Second Phase 2023 The darkening of silver jewelry and articles occurs due to the reaction of silver, in the presence of atmospheric oxygen, with sulfur compounds present in the environment itself, forming silver sulfide, which is a black compound. This reaction is represented below: 1:15:17 Q06 - FUVEST Second Phase 2023 A typical milk adulteration process involves a simple dilution with water. This adulteration can be assessed by the amount of protein in the sample. According to researchers at CENA-USP (Center for Nuclear Energy in Agriculture at the University of São Paulo), milk proteins can be precipitated with copper sulfate in saline medium by the effect of Cu2+ ions. By the amount of Cu2+ remaining in solution, it is possible to calculate, by difference, the amount of protein in the sample. When is the second phase of FUVEST 2023? FUVEST SECOND PHASE The 2nd phase tests of Fuvest 2023 will be applied on January 8th and 9th, 2023. January 8th, 2023 - 2nd Phase Test - Portuguese and Writing January 9th, 2023 - 2nd Phase Test - Specific subjects according to the chosen career What will the second phase of FUVEST 2023 be like? The 2nd phase will consist of specific knowledge tests, with two discursive tests, mandatory for all candidates promoted to this phase. Each of these tests will last 4 hours. There will be no additional time for transcribing answers, which must be written in Portuguese and in legible handwriting. The first test will have two parts, each worth 50 points. The first part will consist of 10 questions in Portuguese, of equal value, involving comprehension and interpretation of texts, grammar and literature; the second part will consist of an essay. The answer to each question must be written exclusively in the space provided for it. This test is worth 100 points. The second test will consist of 12 questions of equal value, on two to four subjects, depending on the chosen career. If there are two subjects, there will be six questions for each. If there are three subjects, there will be four questions for each. If there are four subjects, there will be three questions for each. The answer to each question must be written exclusively in the space provided for it. This test is worth 100 points. More information on the FUVEST website - https://www.fuvest.br/vestibular-da-usp/ ???? SUBSCRIBE TO THE CHANNEL - https://bit.ly/3zY1x21 ???? Did you like the video? Leave your LIKE! Follow me on social media: ✏️Instagram: / prof_igor_quimica ✏️Twitter: / igorsuga ✏️Blog: https://igorsuga.wordpress.com/ #chemistry #igorchemistry #FUVEST #live #fuvestreview #chemistryreview #organicchemistry #inorganicchemistry #electrochemistry #entranceexam #entranceexamstudent #entranceexams #questionsolving #fuvestsecondphase #fuvest2023 #ewisformula #acetylene #drygel