Which of the following is a decompostion reaction? MgO (s) + H 2 O (l) -----> Mg
ID: 850821 • Letter: W
Question
Which of the following is a decompostion reaction?
MgO(s) + H2O(l) -----> Mg(OH)2(s)
2HClO4(aq) + Mg(OH)2(s) -----> Mg(ClO4)2(aq) + 2H2O(l)
Ca(ClO3)2(s) ------> CaCl2(s) + 3O2(g)
C2H4(g) + 3O2(g) ---> 2CO2(g) + 2H2O(g)
Mg(s) + 2HCl(aq) ------> MgCl2(aq) + H2(g)
A.MgO(s) + H2O(l) -----> Mg(OH)2(s)
B.2HClO4(aq) + Mg(OH)2(s) -----> Mg(ClO4)2(aq) + 2H2O(l)
C.Ca(ClO3)2(s) ------> CaCl2(s) + 3O2(g)
D.C2H4(g) + 3O2(g) ---> 2CO2(g) + 2H2O(g)
E.Mg(s) + 2HCl(aq) ------> MgCl2(aq) + H2(g)
Explanation / Answer
Ca(ClO3)2(s) ------> CaCl2(s) + 3O2(g)
C.Ca(ClO3)2(s) ------> CaCl2(s) + 3O2(g)
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