ROTEIRO DE RECUPERAÇÃO – CIÊNCIAS

Professora da Disciplina: Yara Tappis Data: / 11 /15 3º TRIMESTRE

Aluno (a): Nº: Nota:

9º ano --- Ensino ______ Período: Matutino Valor da avaliação:

CONTEÚDO:

- FUNÇÕES QUÍMICAS

- TABELA PERIÓDICA

- LIGAÇÕES QUÍMICAS

- ELETRÓLITOS

- INDICADORES

-SEMELHANÇAS ATÔMICAS

- MASSA MOLECULAR

1) Observe a lista de substâncias químicas abaixo:

H 2 S O 4

Ba ( OH ) 2

CaCO 3

NaOH

SO 2

H4 P 2 O 7

CO 2

MnO 4

HBr

H2O2

H 3 PO4

Na NO3

HI

Extraia da lista:

a) Um monoácido ___________________________________________________________________

b) Uma base _______________________________________________________________________

c) Uma substância binária _______________________________________________________________

d) Um poliácido ____________________________________________________________________

e) Uma dibase _____________________________________________________________________

f) Um oxisal _______________________________________________________________________

g) Um hidrácido ____________________________________________________________________

h) UM poliácido ____________________________________________________________________

i) Um óxido _______________________________________________________________________

j) Uma substância ternária ___________________________________________________________

k) Um ácido binário _________________________________________________________________

l) Um oxiácido _____________________________________________________________________

m) Um dióxido ______________________________________________________________________

2) Explique o que são indicadores e determine exemplos utilizados em laboratório.

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3) Escreva sobre a estrutura da tabela periódica do elementos.

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4) Explique o que são eletrólitos.

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5) Defina ácidos , bases , sais e óxidos.

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6) Cite formas de identificar as moléculas de ácidos, bases, sais e óxidos.

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7) Diferencie ligações químicas iônicas de ligações químicas covalentes.

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8) De que forma surgem os cátions e os ânions?

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9) Simbolize quimicamente a ligação química entre o potássio e o cloro.

10 ) Explique o que é uma reação química de neutralização.

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11) Explique o que são ISÓTOPOS, ISÓBAROS E ISÓTONOS E DÊ EXEMPLOS.

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12 ) Use sua tabela periódica e calcule as massas moleculares de todos os compostos químicos propostos no exercício 1.

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