Question

Balance the following reactions and indicate which of the six types of chemical reaction are being represented. Assume that all reactions “take place.”    Remember: you want the simplest ratio of coefficients.

1)              ____ NaBr + ____ Ca(OH)₂ à ___ CaBr₂ + ____ NaOH

Type of reaction: _____________________________

2)              ____ NH₃+ ____ H₂SO₄ à ____ (NH₄)₂SO₄

Type of reaction: _____________________________

3)              ____ C₅H₉O + ____ O₂ à ____ CO₂ + ____ H₂O

Type of reaction: _____________________________

4)              ____ Pb + ____ H₃PO₄ à ____ H₂ + ____ Pb₃(PO₄)₂

Type of reaction: _____________________________

5)              ____ Li₃N + ____ NH₄NO₃ à ___ LiNO₃ + _____     Ammonium nitride (Write correct formula, balance)

                                 Type of reaction: _____________________________

6)              ____ HBr + ___ Al(OH)₃ à ___ H­₂O + _____            Aluminum bride (Write correct formula, balance)

Type of reaction: _____________________________

7)          ___ N₂H₄ +   ___ H₂O₂    à ___N₂ + _____ H₂O
                                                                                                                                   Type of reaction: _______________________

8)      ______P₄ +   _____O₂   à    ____               Diphosphorus trioxide      (Write correct formula, balance)    
                                                                                                           Type of reaction _________________________

9)     _____ Fe      +    ____O₂ -à   ________       Iron (III) oxide) (Write correct formula, balance)

Answer 1

Solution :-

The balanced equation for the reaction and type of reaction are as follows

Balanced reactions for the each chemical reaction are as follows

1).       2 NaBr + Ca(OH)2 ----- > CaBr2 + 2NaOH            Double displacement reaction

2) 2NH3 + H2SO4 ------ > (NH4)2SO4                      Acid base reaction (combination reaction )

3) 4C₅H₉O + 27 O₂ ------> 20 CO₂ + 18 H₂O                    Combustion reaction

4) 3Pb + 2H3PO4   ------- > 3H2 + Pb3(PO4)2               redox reaction

5) Li3N + 3NH4NO3 -------- > (NH4)3N + 3LiNO3          double replacement

6) 3HBr + Al(OH)3 ------ > 3H2O + AlBr3              acid base reaction ( double replacement )

7) N2H4 + 2H2O2 ------ > N2 +4 H2O                    redox reaction

8) P4 + 3O2 ---- >2 P2O3                                   synthesis reaction ( combination reaction)

9) 4Fe + 3O2 ----- > 2 Fe2O3                            synthesis reaction ( combination reaction)