
Reações Químicas com Sódio e Água
Interactive Video
•
Chemistry, Science
•
6th - 10th Grade
•
Practice Problem
•
Hard
Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o metal especial utilizado no experimento?
Potássio
Cálcio
Sódio
Magnésio
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do sal de cozinha mencionada no vídeo?
NaCl
KCl
CaCl2
MgCl2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece com a água quando o sódio é adicionado?
Fica amarela
Fica verde
Fica rosa
Fica azul
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o produto químico formado que causa a mudança de cor na água?
Ácido clorídrico
Carbonato de sódio
Hidróxido de sódio
Sulfato de sódio
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual gás inflamável é produzido na reação?
Dióxido de carbono
Nitrogênio
Hidrogênio
Oxigênio
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Por que não ocorre uma explosão imediata com pouco sódio?
Falta de luz
Falta de calor
Falta de oxigênio
Falta de pressão
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é necessário para aumentar a explosão do hidrogênio?
Mais água
Mais luz
Mais pressão
Mais calor
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