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203_QUI II_2DOPARCIAL

Authored by 05 REY MURRIETA JESÚS HOMERO

Chemistry

12th Grade

Used 4+ times

203_QUI II_2DOPARCIAL
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcula la masa de cloruro de sodio si hay 1.25 mol de cloro en la ecuación

Na + Cl2 --> NaCl

Peso Atómico:

Na= 23

Cl= 35.5

188 gr

120 g

146.25g/mol

146.25g

2.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcule los gramos de Cloruro de Zinc a partir de 26.5 gramos de Zinc

Zn + HCl --> ZnCl2 + H2

Peso atómico

Zn= 65.37

Cl= 35.45       

55.18 gr

160g

55.18 gr/mol

85.12g/mol

3.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcula los moles de oxígeno si hay 1.65 gramos de clorato de potasio

KClO3 --> KCl + O2

Peso atómico:

K= 39

Cl=35.4

O= 16   

0.320mol

0.020mol

0.430gr/mol

0.020mol/gr

4.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcula los moles de cromo si hay 28.6 gramos de óxido de cromo

Cr2O3 + Al --> Cr + Al2O3

Peso atómico

Cr=52

O=16

0.866 mol

0.374mol

1.243mol

0.646mol

5.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcular gramos de Oxígeno si hay 72 gramos de C2H6

C2H6 + O2 --> CO2 + H2O

Peso atómico

C=12

H=1

O= 16

268.8g

120 g

146.25g

220.34g

6.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcular los moles de 82 gramos de Cloruro de calcio: CaCl2

Peso atómico:

Ca= 40

Cl= 36

0.731 mol

2.34mol

0.423mol

1.345mol

7.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Calcular moles de Óxido férrico: Fe2O3

Peso atómico:

Fe= 56

O= 16

3.69mol

6.87mol

2.58mol

1.345mol

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