QUIMICA

QUIMICA

12th Grade

5 Qs

quiz-placeholder

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QUIMICA

QUIMICA

Assessment

Quiz

Chemistry

12th Grade

Practice Problem

Medium

Created by

annie yolanda espinosa lopez

Used 4+ times

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5 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

1. Seleccione 4 elementos químicos

Br

Hg

Rb

Z

Bh

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

2. Seleccione los elementos del siguiente compuesto, carbono de calcio CaCO3

Calcio, carbono, oxigeno

Calcio, cobalto

Oxigeno, cobalto, potasio

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

a, d, c, b

b, a, c, d

c, d, a, b

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

4. Calcular la composición porcentual del C y H en el etano (CH3-CH3) si su masa molecular es 30g y las masas atómicas del C y H son 12g y 1g respectivamente.

C = 80%

H = 20%

C = 80%

H = 10%

C = 50%

H = 20%

C = 85%

H = 25%

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Una molécula de ácido sulfúrico H2SO4 contiene:

2 átomos de Hidrógeno, 2 átomos de azufre y 4 átomos de oxigeno

2 átomos de hidrógeno, 1 átomo de azufre y 4 átomos de oxigeno

2 átomos de hidrógeno, 0 átomos de azufre y 4 átomos de oxigeno

1 átomo de hidrógeno, 2 átomos de azufre y 4 átomos de oxígeno

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