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Authored by Jorge Reyes
Chemistry
9th - 12th Grade
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48 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: CaO. ¿Cuál es el número de oxidación del oxígeno en esta molécula?
+2
-2
0
+1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: H2CO3. ¿Cuál es el número de oxidación del hidrógeno en esta molécula?
+1
-1
0
+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: Al2O3. ¿Cuál es el número de oxidación del oxígeno en esta molécula?
+2
-2
0
+3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: H3PO4. ¿Cuál es el número de oxidación del fósforo en esta molécula?
+1
-1
+2
+5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: NaCl. ¿Cuál es el número de oxidación del cloro en esta molécula?
+1
-1
+2
-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: CuO. ¿Cuál es el número de oxidación del oxígeno en esta molécula?
+2
-2
0
+1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molécula: H2S. ¿Cuál es el número de oxidación del azufre en esta molécula?
-2
+2
+4
0
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