
Átomos y moléculas
Authored by Jovana Canto
Chemistry
11th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Si tengo 4 moles de ácido nítrico ¿Cuántos átomos de oxígeno tengo?
6,02 x 1023 átomos
2,41 x 10 24 átomos
7,22 x 10 24 átomos
2.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Si tengo 3 moléculas de agua, cuántos átomos de Hidrógeno tengo?
3.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
¿Cuántos moléculas de cloruro de sodio hay en 15 g de de cloruro de sodio?
15 moléculas
1,55 x 10 23 moléculas
9,03 x 10 24 moléculas
2,49 x 1023 moléculas
4.
FILL IN THE BLANK QUESTION
30 sec • 5 pts
¿Cuál es la masa molar del fosfato de aluminio? sólo el número con dos decimales
5.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
2,60 x 10 23 moléculas de agua equivalen a :
4 moles
5 moles
3,5 moles
0,4 moles
6.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
En 3,01x1023 moléculas de hipoclorito de sodio. ¿Cuántos átomos de oxígeno hay?
3,01 x 10 23 átomos
6,022 x 10 23 átomos
0,50 átomos
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
¿Cuántas moles de Au hay en 3.8 x 10 20 átomos de Au?
2,71 x 10 24
2.28 x 10 44
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