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Balancing Chemical Reactions

Authored by Kyle Laniewski

Chemistry

9th - 12th Grade

Used 3+ times

Balancing Chemical Reactions
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_P4+_O  _P2O3

3 P4+1 O→ 2 P2O3
1 P4+1 O→ 2 P2O3
1 P4+ 3 O→ 2 P2O3
1 P4+ 2 O→ 3 P2O3

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_BaS + _PtF2  _BaF2 + _PtS

1 BaS + 1 PtF2 → 1 BaF2 + 1 PtS
4 BaS + 2 PtF2 → 1 BaF2 +  1 PtS
1 BaS + 2 PtF2→ 2 BaF2 +  2 PtS
1 BaS + 3 PtF2 →1 BaF2 +  2 PtS

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_K + _Cl2 _KCl

2 K + 16 Cl2 → 8 KCl
2 K + 1 Cl2 → 2 KCl
3 K + 4 Cl2 → 3 KCl
1 K + 1 Cl2 →1 KCl

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_NaF + _Br2 _NaBr + _F2

1NaF + 2 Br2 →1 NaBr + 2 F2
2NaF + 2 Br2 → 2 NaBr + 2 F2
2 NaF + 3 Br2 → 1 NaBr + 2 F2
2 NaF + 1 Br2 → 2 NaBr + 1 F2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation,            Al2O3 ---> Al + O2 

Cannot be balanced
2Al2O3 ---> 2Al + 3O2 
2Al2O3 ---> 4Al + 3O2 
3Al2O3 ---> 2Al + O2 

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation:  H2 + N2 → NH3

 H2 + 4N2 → NH3
 H2 + 3N2 → 2NH3
 3H2 + N2 → 2NH3
 2H2 + 2N2 → 2NH3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

__NaClO--> __NaCl + __O2

2,2,2
2,2,3
3,2,2
1,2,3

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