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Analyse the texts below. Questions 31 to 35 are based on them.
Text 1
Dear Helpful Harriet,
I have a problem with this teacher at school. He is always shouting at me, though I don't disturb more than lots of other pupils in the class. It´s true that I sometimes don´t do my homework, but I know his subject very well, always get high marks on the tests, so there is no point in doing silly homework. He gave me a much lower mark than I deserved at the end of the term. It´s not fair. And it´s no good saying go to the head teacher, she always backs him up. What can I do?
Yours,
Frustrated Student
Adapted from UR, P. A Course in Language Teaching: practice and theory. 1996, p. 252
Text 2
Available at: www.gocomics.com/calvinandhobbes/2010/01/04/ Access on 24th Mar, 2010.
“What can I do?”, in text 1, expresses
Analyse the texts below. Questions 31 to 35 are based on them.
Text 1
Dear Helpful Harriet,
I have a problem with this teacher at school. He is always shouting at me, though I don't disturb more than lots of other pupils in the class. It´s true that I sometimes don´t do my homework, but I know his subject very well, always get high marks on the tests, so there is no point in doing silly homework. He gave me a much lower mark than I deserved at the end of the term. It´s not fair. And it´s no good saying go to the head teacher, she always backs him up. What can I do?
Yours,
Frustrated Student
Adapted from UR, P. A Course in Language Teaching: practice and theory. 1996, p. 252
Text 2
Available at: www.gocomics.com/calvinandhobbes/2010/01/04/ Access on 24th Mar, 2010.
It can be inferred from text 1 that the writer
Analyse the texts below. Questions 31 to 35 are based on them.
Text 1
Dear Helpful Harriet,
I have a problem with this teacher at school. He is always shouting at me, though I don't disturb more than lots of other pupils in the class. It´s true that I sometimes don´t do my homework, but I know his subject very well, always get high marks on the tests, so there is no point in doing silly homework. He gave me a much lower mark than I deserved at the end of the term. It´s not fair. And it´s no good saying go to the head teacher, she always backs him up. What can I do?
Yours,
Frustrated Student
Adapted from UR, P. A Course in Language Teaching: practice and theory. 1996, p. 252
Text 2
Available at: www.gocomics.com/calvinandhobbes/2010/01/04/ Access on 24th Mar, 2010.
The topic which is common in both texts is
Nos diversos refrigerantes, o ácido fosfórico é utilizado como acidulante. Em cada lata de refrigerante são utilizados aproximadamente 35 mg de ácido fosfórico. Aproximadamente, quantas latas de refrigerante serão necessárias para que esse ácido, adicionado ao bicarbonato ácido de sódio, produza CO2 suficiente para encher um balão de festa com um volume de 3 litros?
(Dados: Pressão = 1 atm; Temperatura
= 25° C; R = 0,082 atm L mol -1
K
-1)
Observe a reação a seguir.

De acordo com as características orientadoras do grupo
nitro em reações de substituição no anel benzênico, o produto
formado em maior porcentagem será
Observe a tabela a seguir.

Forças intermoleculares mais fortes levam a pontos de ebulição mais altos, quando se aumentam os momentos dipolo e a
energia de interação dipolo-dipolo. No entanto, tal fator não é
observado nas substâncias apresentadas na tabela. A explicação para isso reside no fato de que
Durante uma aula de experimentação no laboratório da escola, um professor solicitou aos alunos que preparassem soluções utilizando um alvejante comercial e vinagre. De cada solução preparada, foram separadas duas amostras em diferentes tubos de ensaio e adicionadas gotas de indicadores, conforme a tabela a seguir.
Tubo de Ensaio
I - Alvejante
II - Vinagre
III - Alvejante
IV - Vinagre
Indicador adicionado
Extrato de repolho roxo
Extrato de repolho roxo
Verde de bromocresol
Verde de bromocresol
As cores observadas após a adição dos indicadores no tubos
de ensaio I, II, III e IV são, respectivamente,