
Composicion Porcentual
Authored by Charles Martinez
Chemistry
1st - 2nd Grade
NGSS covered

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la formula molecular H2SO4, el porcentaje de la masa del Hidrógeno es de...
2.0%
32.69%
65.25%
26.8%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determina la composición centesimal del hidróxido de calcio, Ca(OH)2
Masas atómicas (u): H=1; O=16; Ca=40
65,7 % Ca
12,3 % O
22 % H
59,8 % Ca
38,4 % O
1,8 % H
66,5 % Ca
21,1 % O
12,4 % H
54% Ca
43 % O
3 % H
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la formula molecular KHCO3, el porcentaje de la masa del Carbono es de...
12%
30.05%
1.01%
47.94%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la formula molecular ZnSO4, el porcentaje de la masa del Oxigeno es de...
40%
40.49%
19.86%
66.67%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la formula molecular KOH, el porcentaje de la masa del Potasio es de...
70%
28.52%
1.79%
33.33%
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En la molécula de Sr3(PO4)2, la cantidad de átomos es
3 átomos de estroncio, 1 átomo de fosforo, 4 átomos de oxígeno
3 átomos de estroncio, 2 átomos de fosforo, 2 átomos de oxígeno
3 átomos de estroncio, 1 átomos de fosforo, 6 átomos de oxígeno
3 átomos de estroncio, 2 átomos de fosforo, 8 átomos de oxígeno
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es la suma de todos los átomos de una molécula de un compuesto específico.
Mol
peso molecular
Masa atómica
Composición centesimal
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