Acerto de Equações Químicas_02
Quiz
•
Science, Chemistry
•
8th Grade
•
Hard
José Alberto Alves
Used 10+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual representa uma equação química?
2H2
2H2 + O2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Onde se colocam os coeficientes numa equação química?
à esquerda de um reagente/produto
do lado direito de um átomo como subscrito
do lado direito de um átomo como sobrescrito
do lado esquerdo de um átomo como subscrito
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A combustão do magnésio origina óxido de magnésio. Qual a equação química correta?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A combustão do sódio na presença de oxigénio origina óxido de sódio.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A corrosão de certos metais, como o ferro, resulta da reação com o oxigénio.
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