UQM
Quiz
•
Chemistry
•
Professional Development
•
Practice Problem
•
Hard
Helbert Britto
Used 2+ times
FREE Resource
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El átomo patrón para las unidades químicas de masa es:
C - 12
Na - 23
H - 1
O - 16
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indique la alternativa que presenta mayor masa. Recuerde que 1 at - g = m.A (E) gramos
2 at - g de C
0,5 at - g de Ca
10 at - g de H
1,5 at - g de N
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcule la masa de una muestra de 1,5x1022 átomos de bromo.
12 g
1200 g
120 g
1,2 g
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcule la masa fórmula del compuesto Ca3(PO4)2
290
310
340
320
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuántas molécula existen en 9 gramos de ácido acético (CH3COOH)
9x1022
6x1023
9x1023
12x1022
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