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Q582469
Português
Texto associado
Ele e suas ideias
Lima Barreto
(LIMA BARRETO. Ele e suas ideias. In: Para gostar de ler,
volume 8, contos. São Paulo: Ática, p. 51-54)
1 Revista humorística surgida em 1927, dedicada, principalmente, à caricatura. (N.E.)
2 Cavanhaque.
3 Edison foi o inventor do telégrafo e Marconi, das ondas de rádio.
“Andávamos por esse tempo na febre dos melhoramentos, das construções; e, a todo momento, ele lembrava a este ou àquele jornal uma ideia.” (linhas 7-9)
Para obter efeitos de sentido, os autores costumam valerse de diferentes recursos semânticos. A expressão sublinhada no fragmento acima – “febre dos melhoramentos” – exemplifica um caso de:
Para obter efeitos de sentido, os autores costumam valerse de diferentes recursos semânticos. A expressão sublinhada no fragmento acima – “febre dos melhoramentos” – exemplifica um caso de:
Q582468
Português
Texto associado
Ele e suas ideias
Lima Barreto
(LIMA BARRETO. Ele e suas ideias. In: Para gostar de ler,
volume 8, contos. São Paulo: Ática, p. 51-54)
1 Revista humorística surgida em 1927, dedicada, principalmente, à caricatura. (N.E.)
2 Cavanhaque.
3 Edison foi o inventor do telégrafo e Marconi, das ondas de rádio.
O acento grave de “àquele" em “...ele lembrava a este ou àquele jornal uma ideia..." (linha 9).
Q582467
Português
Texto associado
Ele e suas ideias
Lima Barreto
(LIMA BARRETO. Ele e suas ideias. In: Para gostar de ler,
volume 8, contos. São Paulo: Ática, p. 51-54)
1 Revista humorística surgida em 1927, dedicada, principalmente, à caricatura. (N.E.)
2 Cavanhaque.
3 Edison foi o inventor do telégrafo e Marconi, das ondas de rádio.
A “tragédia íntima e interior" do personagem descrito no primeiro parágrafo se explica no seguinte trecho:
Q582466
Português
Texto associado
Ele e suas ideias
Lima Barreto
(LIMA BARRETO. Ele e suas ideias. In: Para gostar de ler,
volume 8, contos. São Paulo: Ática, p. 51-54)
1 Revista humorística surgida em 1927, dedicada, principalmente, à caricatura. (N.E.)
2 Cavanhaque.
3 Edison foi o inventor do telégrafo e Marconi, das ondas de rádio.
Textos são construídos com base em uma tipologia textual. Esses tipos podem aparecer de forma exclusiva ou mesclada em um texto. Identifique o tipo textual do fragmento seguinte:
“Era um homem pequeno, magro, com um reduzido cavaignac (...)” (linhas 2-3)
“Era um homem pequeno, magro, com um reduzido cavaignac (...)” (linhas 2-3)
Q582685
Inglês
Texto associado
Are social networking sites addictive?
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
Marque o enunciado que se refere, no texto, ao
que seria a razão principal por trás do vício em redes
sociais.
Q582684
Inglês
Texto associado
Are social networking sites addictive?
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
No quarto parágrafo, o autor usa a metáfora “fly on
the wall" (uma mosca na parede) para ilustrar um
comportamento que ele associa ao uso excessivo de
redes sociais. Que comportamento seria esse?
Q582683
Inglês
Texto associado
Are social networking sites addictive?
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
The pronoun 'they' in “They noted that narcissistic
people use Facebook in a self-promoting way, rather than
in a connective way"(paragraph 3) refers to
Q582682
Inglês
Texto associado
Are social networking sites addictive?
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
According to the text, the difference between real
life and online social networking is:
Q582681
Inglês
Texto associado
Are social networking sites addictive?
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
1With the increasing popularity of wireless devices like smartphones — devices that can move lots of data very quickly — users have access to their social networks 24 hours a day. Most social networking sites have developed applications for your mobile phone, so logging on is always convenient. Social networks also tap into our human desire to stay connected with others. Besides, the rush of nostalgia as you connect with your former grade-school classmate on Facebook can be quite heady and exciting.
2But what's the main reason we find these sites so addictive? Plain old narcissism. We broadcast our personalities online whenever we publish a thought, photo, YouTube video or answer one of those “25 Things About Me" memes. We put that information out there so people will respond and connect to us. And being part of a social network is sort of like having your own entourage that follows you everywhere, commenting on and applauding everything you do. It's very seductive.
3In 2008, researchers at the University of Georgia studied the correlation between narcissism and Facebook users. Unsurprisingly, they found that the more “friends" and wall posts a user had, the more narcissistic he or she was. They noted that narcissistic people use Facebook in a selfpromoting way, rather than in a connective way. It may be an obvious theory, but it also suggests that social networks bring out the narcissist in all of us.
4Social networks are also a voyeuristic experience for many users. Following exchanges on Twitter or posts on Facebook and MySpace are akin to eavesdropping on someone else's conversation. It's entertaining and allows you to feel like a “fly on the wall" in someone else's life.
5Social networking sites also publicly list your “friends" or “followers" — giving you instant status. How many people do you know online who spend all their time trying to get more friends, more followers, more testimonials? We work hard in real life to elevate our statuses, make friends and search out boosters for our self-esteem. Online social networking provides this to us, and we don't even have to change out of our sweatshirts to get it.
(adapted from http://computer.howstuffworks.com/internet/socialnetworking/information/social-networking-sites-addictive2.htm)
Glossary
addictive: viciante; tap into: explorar/tirar proveito; broadcast: anunciar; entourage: comitiva/séquito; akin to eavesdropping: parecido com bisbilhotar; booster: aquilo que impulsiona; sweatshirts: camisetas
The use of the word 'unsurprisingly' in
“Unsurprisingly, they found that the more “friends" and
wall posts a user had, the more narcissistic he or she
was." (paragraph 3) means that
Q582680
Química
A farinha de osso contém fosfato de cálcio obtido
pela calcinação de ossos de animais. O fosfato de cálcio
é também encontrado na crosta terrestre e constitui a
matéria-prima utilizada na produção do elemento fósforo.
Quando tratado com ácido sulfúrico, o fosfato de cálcio
produz fertilizante fosfatado. Considerando essas
informações, pode-se dizer que a fórmula molecular desse
sal produzido e a massa necessária para preparar 1,0 L
de solução M desse mesmo sal, respectivamente, são:
Q582679
Química
Nas pilhas, através de um fio externo, os elétrons
fluem de um eletrodo em que ocorre oxidação para aquele
em que ocorre redução. Se colocarmos nesse fio externo
um aparelho denominado voltímetro, conseguiremos medir
a força eletromotriz da pilha. Considerando uma pilha
formada pelos eletrodos de Al e de Cu, cujos potenciais
de redução são E0
(Al3+/Al0
) = – 1,68 V e
E0
(Cu2+/Cu0
) = + 0,34 V, pode-se afirmar que o potencial
da célula é:
Q582678
Química
Foram dissolvidos em água 0,500 g de uma
amostra de sal comum (NaCl). À solução resultante
adicionou-se excesso de nitrato de prata, em meio de
ácido nítrico. O precipitado branco formado, separado por
filtração, lavado convenientemente e seco, pesou
1,148 g.
Assinale a resposta que apresenta a pureza da amostra analisada.
Assinale a resposta que apresenta a pureza da amostra analisada.
Q582677
Química
O hidrocarboneto de fórmula molecular C6H14
apresenta cinco formas isoméricas: n-hexano;
2-metilpentano; 3-metilpentano; 2,3-dimetilbutano e
2,2-dimetilbutano. Sobre os compostos apresentados,
pode-se afirmar que
Q582676
Química
A função orgânica é um conjunto de compostos
que possuem propriedades químicas semelhantes. Dentro
de cada função, a nomenclatura dos compostos segue
regras aceitas internacionalmente pela IUPAC.
Em conformidade com essas exigências, o nome oficial para o H3C-CH2-C(CH3)2-CH(CH3)-COOH é:
Em conformidade com essas exigências, o nome oficial para o H3C-CH2-C(CH3)2-CH(CH3)-COOH é:
Q582675
Matemática
Assinale a alternativa INCORRETA.
Q582674
Matemática
O valor máximo da função real f(x) = 1 /(2+cos(x)) é:
Q582673
Matemática
Um círculo está inscrito em um quadrado.
Sabendo-se que o perímetro do quadrado é igual a 8 cm,
é correto afirmar que a área do círculo inscrito é igual a:
Q582672
Matemática
Conforme figura a seguir, cinco números reais
denotados por R, S, T, U e V foram marcados em uma
reta numérica, de modo que R < S < T < U < V e
S – R = T – S = U – T = V – U.
Se T = 1/5 e V = 1/4, então é correto afirmar que o número R é igual a:
Se T = 1/5 e V = 1/4, então é correto afirmar que o número R é igual a:
Q582671
Matemática
O valor da expressão 
é igual a:
é igual a:
Q582670
História
A inflação é um termo
carregado de conteúdo
ideológico, apesar de ser –
quase sempre – explicado
por critérios exclusivamente
econômicos. Sobre a história
da inflação brasileira nos
anos 80, podemos afirmar:
Conheça nossos planos