Cuestionario inicial - UD Reacciones
Quiz
•
Chemistry
•
4th Grade
•
Easy
marta rodríguez
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿La fusión de la nieve de las pistas de ski se corresponde con un cambio físico o químico?
Cambio químico
Cambio físico
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿Cuándo se cocinan los alimentos sufren cambios físicos o químicos?
Químicos
Físicos
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
En la elaboración de pan se utiliza la levadura para que la masa de harina y agua aumente de tamaño y se vuelva esponjosa. ¿ La masa total de la harina, agua y levadura debe ser igual , mayor o menor a la masa del pan horneado?
Mayor
Menor
Igual
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿Un mol de átomos de plata tiene mas, menos o igual número de átomos que un mol de átomos de hierro?
Nº átomos Ag > Nº átomos Fe
Nº átomos Ag < Nº átomos Fe
Nº átomos Ag = Nº átomos Fe
5.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
¿Una disolución homogénea está compuesta por?
Disolvente
Soluto
Producto
Reactivo
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿ Los alimentos con pH básico tiene sabor ...?
Ácido
Salado
Amargo
Ninguna de las tres
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿Las disoluciones ácidas conducen la electricidad?
Si
No
Las ácidas si las básicas no
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