Ones you got wrong
8 important questions on Ones you got wrong
Select the balanced equation that represents the combustion of butane, C4H10.
2C4H10 + 13O2 → 8CO2 + 10H2O
C4H10 + CO2 → O2 + H2O
C4H10 + 13O2 → 4CO2 + 5H2O
2C4H10 + 13O2 → 8CO2 + 10H2O
Which reaction can not be classified as a combustion reaction?
H2(g) + Cl2 (g) ---> 2HCl (g)
C (s) + O3 (g) --> CO2 (g) + O2 (g)
CO (g) + O 2 (g) --> CO2 (g)
H2(g) + Cl2 (g) ---> 2HCl (g)
What is the name of the type of equation written below.
Calcium + water --> calcium hydroxide + hydrogen
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Which of the equations is the reverse reaction of HCl (aq) + NH3(aq) --> 2NH4Cl(s) N2(g) + 2H2Cl(g) → 3NH2 (g)
NH4Cl(s) → HCl (aq) + NH3(aq)
NH4Cl(s) → HCl (aq) + NH3(aq)
Anions are usually (non-metals or metals)
Which of the following is the balanced double replacement reaction that occurs when an aqueous solution of nickel (II) nitrate combines with an aqueous lithium phosphate?
3Ni(NO3)2(aq) + 2Li3PO4(aq) --> Ni3(PO4)2(s) +6LiNO3 (aq)
Ni(NO3)2(aq) + Li3PO4(aq) --> Ni3(PO4)2(s) +LiNO3 (aq)
3Ni(NO3)2(aq) + 2Li3PO4(aq) --> Ni3(PO4)2(s) +6LiNO3 (aq)
. Cations are formed when an atom-___one or more electrons.
What is the oxidation number for Iodine?
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