Pesos moleculares y composición porcentual
6th Grade
•10 Qs
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Pesos moleculares y composición porcentual
Quiz
•
Chemistry
•
6th Grade
•
Practice Problem
•
Medium
LUIS CENTENO
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El peso molecular del benceno: C6H6 es:
78 uma
56 uma
18 uma
13 uma
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La molécula es la menor unidad de:
un elemento
una sustancia
un átomo
un compuesto
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El peso molecular del peróxido de oxígeno o agua oxigenada: H2O2 es:
18 uma
17 uma
34 uma
42 uma
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Cual es el peso molecular del hidróxido de calcio: Ca(OH)2
75 uma
76 uma
74.078 uma
73.56 uma
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
El porcentaje de Fe, en el óxido ferroso, FeO, es:
74.28 %
75.68%
77.72%
77.00%
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El porcentaje de oxígeno en el óxido ferroso: FeO
22.268 %
20.00 %
23%
21%
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El peso molecular del nitrato de potasio KNO3 es:
100 uma
102 uma
103 uma
101,09 uma
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