QUíMICA
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
egled torres
Used 17+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En una reacción química reaccionan 835.83gr de reactivos. Qué cantidad de producto se formará?
835.83gr
835.83at
1mol
6.023x1023
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ajustar la reacción: a C6H14 + b O2 c CO2 + d H2O
a=0 b=10 c=6 d=7
a=2 b=9,5 c=7 d=7
a=1 b=10 c=6 d=7
a=1 b=9,5 c=6 d=7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calcular el número de gramos que hay en 157 moles de agua.
8.72gr
2826gr
2826moles
8.72at
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dada la siguiente reacción: 2C + O2 2CO
Transformemos 70 gramos de O2 a moles de CO.
140moles
2.18moles
4.38moles
1.12moles
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Con base en la siguiente ecuación:
S8 (l) + 4Cl2(g) → 4S2 Cl2 (l)
Determinemos: Con 7 moles de Cl2 , ¿Cuántas moléculas de S2 Cl2 se van a producir?
4.21moléculas
4.21 × 1024 moléculas
7 moléculas
4.21 × 1024 átomos
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cuántos átomos de CaCO3 hay en 145gr del mismo compuestos
6.023x1023 átomos
8.73x1023 átomos
1.45 átomos
100.06 átomos
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cuál es el porcentaje de fósforo presente en H3PO4 ?
97.93%
65.31%
3.06%
31.62%
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