Examen semestral Química 2

Examen semestral Química 2

11th Grade

44 Qs

quiz-placeholder

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Examen semestral Química 2

Examen semestral Química 2

Assessment

Quiz

Chemistry, Science

11th Grade

Practice Problem

Medium

NGSS
HS-LS1-6

Standards-aligned

Created by

Horlan Cruz

Used 6+ times

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44 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Los subíndices de la formula Ca2CO3 indican:

El número de átomos de cada elemento

El número de moles

El número de electrones

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Peso molecular de la molécula de la glucosa C6H12O6

120 g

24 g

180 g

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine la masa molecular de NaCl

40

36.5

58.5

57

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine la masa de 15.5 moles de Mg(OH)2

903.65 gr Mg(OH)2

900 gr Mg(OH)2

899 gr Mg(OH)2

890gr Mg(OH)2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

En la reacción: MnO2 + 4HCl --> MnCl2 + Cl2 + 2H2O, reaccionaron 22 moles de MnO2 con 40 moles de HCl.

¿Cuál es el reactivo limitante?

HCl

MnO2

H2O

MnCl2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Una mol de agua contiene

6.023 x 1023 átomos de hidrogeno

6.023 x 1023 moléculas de agua

6.023 x 1023 átomos de agua

una molécula de agua

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es el primer paso para poder calcular el reactivo limitante y en exceso?

Transformar a moles

Determinar la masa molecular

Igualar la ecuación química

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