
ENTRADA
Authored by Jorge Barrera
Chemistry
1st Grade
Used 25+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
indicar la atomicidad del ácido carbónico
C: +2; +4
4
5
6
7
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1. ¿Cuántas moles están contenidos en 495 g de gas fosgeno, COCl2?
Cl=35,5; C=12; O=16
2 mol
4 mol
5 mol
5 g
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
calcular X si C2Hx tiene una masa de 30 uma
C=12; H=1
2
4
6
8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
indicar la formula de la soda caustica
Na2O
NaH
NaOH
KOH
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
la región energética de mayor probabilidad electrónica se conoce como:
subnivel
orbital
nivel
spin
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
hallar el estado de oxidacion del cromo, en el acido dicromico: H2Cr2O7
6
+6
4
+4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
convertir 4 pulgadas a centímetros
10,16 cm
20,32 cm
5,08 cm
7,62 cm
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