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MV Chemical Reactions
Test Description: Reviews composition, decomposition, single replacement, and double replacement. The -------- are the same as arrows, the program does not allow arrows. Sorry
Instructions: Answer all questions to get your test result.
1) New substances formed in a chemical reaction are called
A
coefficients
B
subscripts
C
reactants
D
products
2) Numbers placed in front of formulas in an equation are called
A
subscripts
B
products
C
coefficients
D
reactants
3) _____N2 + ____Cl2 ---- ____NCl3
A
decomposition
B
double replacement
C
composition
D
single replacement
4) ____ Mg + ____CO2 ------- ____C + _____ MgO
A
double replacement
B
decomposition
C
single replacement
D
composition
5) _____Al2O3 ------ _____Al + _____ O2
A
decomposition
B
single replacement
C
double replacement
D
composition
6) ____MgO -------- ____Mg + ____O2
A
double replacement
B
composition
C
single replacement
D
decomposition
7) ____Al + ____O2 -------- ____Al2O3
A
double replacement
B
composition
C
decomposition
D
single replacement
8) ___Zn + __H2SO4 -------- __ZnSO4 + ___H2
A
composition
B
double replacement
C
decomposition
D
single replacement
9) ____Cl2 + ____KI -------- ____KCl + ____I2
A
composition
B
double replacement
C
single replacement
D
decomposition
10) ____CuCl -------- ____Cu + ____Cl2
A
decomposition
B
double replacement
C
single replacement
D
composition
11) ____Na + ____Cl2 -------- ____NaCl
A
composition
B
double replacement
C
decomposition
D
single replacement
12) ____Al + ____HCl -------- ____AlCl3 + ____H2
A
decomposition
B
double replacement
C
composition
D
single replacement
13) ____Fe2O3 -------- ____Fe + ____O2
A
single replacement
B
double replacement
C
composition
D
decomposition
14) ____ZnCl2 + ____(NH4)2S -------- ____ZnS + ____ NH4Cl
A
decomposition
B
composition
C
double replacement
D
single replacement
15) _____NaBr + _____BaCl2 --------
A
decomposition
B
composition
C
single replacement
D
double replacement
16) _____KF + _____Br2 --------
A
double replacement
B
single replacement
C
composition
D
decomposition
17) _____Fe (III) + _____HCl --------
A
composition
B
double replacement
C
single replacement
D
decomposition
18) _____AgNO3 + _____HCl --------
A
composition
B
single replacement
C
decomposition
D
double replacement
19) _____MgCO3 --------
A
single replacement
B
double replacement
C
composition
D
decomposition
20) _____MgO ---------
A
double replacement
B
single replacement
C
decomposition
D
composition
*select an answer for all questions
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