
test B3
Authored by maralí maralá
Science
3rd Grade
Used 1+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué ocurre con la presión de un gas si aumentamos su volumen a temperatura constante?
La presión aumenta
La presión no cambia
La presión se vuelve cero
La presión disminuye
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la fórmula del ácido nítrico?
HNO₂
HCl
H₂SO₄
HNO₃
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es un reactivo en una reacción química?
El producto final
La sustancia que participa al comienzo
Un catalizador
Un gas residual
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de reacción representa: Mg + O₂ → MgO?
Síntesis
Descomposición
Neutralización
Combustión de un metal
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué unidad se usa para medir la cantidad de sustancia en química?
Litros
Newtons
Moles
Kelvin
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una disolución de KCl en agua, ¿qué papel desempeña el KCl?
Soluto
Disolvente
Reactivo
Catalizador
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el orden correcto de pasos en el método científico?
Hipótesis → Resultados → Observación → Conclusión
Observación → Conclusión → Experimento → Hipótesis
Observación → Hipótesis → Experimento → Conclusión
Conclusión → Hipótesis → Observación → Análisis
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