
CONTEO DE ÁTOMOS
Authored by LEONARDO GOMEZ
Science
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Para la reacción: 3C₆H₈O₆ + 2C₄H₆O₃ → 2C₉H₈O₄ + 3C₂H₄O₂ , El número de átomos de C en los PRODUCTOS es:
24
26
28
20
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Para la reacción: 3C₆H₈O₆ + 2C₄H₆O₃ → 2C₉H₈O₄ + 3C₂H₄O₂ , la ecuación está:
Balanceada
No balanceada
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la ecuación Cu + 2AgNO₃ → 2Cu(NO₃)₂ + 2Ag, el conteo total de átomos de Nitrógeno en reactivos y productos es, respectivamente:
4 y 2
2 y 2
2 y 4
2 y 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción Ca(OH)₂ + 2HNO₃ → 2Ca(NO₃)₂ + 2H₂O, el número de átomos de oxígeno en los REACTIVOS es:
6
3
2
12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción Ca(OH)₂ + 2HNO₃ → 3Ca(NO₃)₂ + 2H₂O, el número de átomos deo oxígeno en los PRODUCTOS es:
3
6
18
12
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃, el número de átomos de I (yodo) tanto en reactivos como en productos es:
2 y 1
1 y 2
1 y 1
2 y 2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃, el número de átomos de oxígeno en reactivos y productos es:
6 y 6
4 y 4
3 y 2
6 y 4
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