* When the equation NH 4 OH + H 2 SO 4 -------> (NH 4 ) 2 SO 4 + H 2 O is balanc
ID: 1051573 • Letter: #
Question
* When the equation NH4OH + H2SO4 -------> (NH4)2SO 4 + H2O is balanced, a term in the balanced equation is
A.
2H2SO4
B.
NH4OH
C.
2(NH4)2SO4
D.
2H2O
* In the expression, 2AlCl3,
A.
2 and 3 are subscripts
B.
2 and 3 are coefficients
C.
2 is a subscript and 3 is a coefficient
D.
3 is a subscript and 2 is a coefficient
* Given the reaction: 2KClO3 -------> 2KCl + 3O2. How many moles of O2 are produced when 4.0 mol of KCl are produced?
A.
1.5 mol
B.
3.0 mol
C.
4.5 mol
D.
6.0 mol
* The following reaction: C + O2 ------> CO2, is an example of
A.
combination
B.
decomposition
C.
single displacement
D.
double displacement
A.
2H2SO4
B.
NH4OH
C.
2(NH4)2SO4
D.
2H2O
Explanation / Answer
1. Balanced equation is
2 NH4OH + H2SO4 -------> (NH4)2SO 4 + 2 H2O
2. D. 3 is subscript and 2 is a coeffitent.
4. A. Combination
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