Balanceamento de equações químicas
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
HALLISON LADISLAU
Used 22+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1, 3 e 3
1, 2 e 2
1, 1 e 1
2, 2 e 1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2,1,1,e 1
2, 2, 2 e 1
2, 1, 1 e 2
1, 2, 2 e 1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1, 2, 1 e 1
2, 1, 1 e 2
1, 2, 1 e 2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3, 1 e 2
2, 1 e 1
3, 1 e 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1, 1, 4, 1 e 1
1, 2, 1, 2 e 3
1, 1, 2, 2 e 1
1, 4, 1, 2 e 3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reação de combustão do metano representada acima não apresenta-se balanceada.
Verdadeiro
Falso
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Toda reação de combustão envolve a presença de gás oxigênio (comburente) e um combustível que é queimado. Quando o combustível é um composto orgânico, a reação completa sempre produz gás carbônico e água. Abaixo temos a equação química que representa a reação de combustão completa do gás metano:
CH4 (g) + O2 (g) → CO2 (g) + H2O (v)
Indique a alternativa que traz os menores coeficientes que tornam essa equação corretamente balanceada:
1, ½, ½, 1
1, 2, 1, 4
2, 1, 1, 2
1, 2, 1, 2
13, 13/2, 13/2, 6
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