
Experiência
Authored by Rafaela Soares
Chemistry
University

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantas cores aparece na experiência?
2
4
5
3
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Qual nome do experimento apresentado?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No final do experimento conclui-se que o nox do maganes :
Reduz
Oxida
Oxida e reduz
neutraliza
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Com o hidróxido de sódio (NaOH), também ocorre uma dissociação e consequente liberação de:
Elétrons, íons e sódio
Sódio, potássio e nox
Íons, sódio e hidróxido
Hidróxido de sódio, nox e elétrons
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Como o açúcar (C12H22011) é molecular, ao se dissolver, não sofre dissociação. Porém, a presença dos íons provenientes do hidróxido de sódio faz com que ele libere o que para o meio:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O íon maganato em meio diluído transforma- se em:
Dióxido de manganês
Dióxido de magnésio
Dióxido de carbono
Dióxido de sódio
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