Question

Balancing equations and types of reactions
1) ____ NaBr + ____ H 3 PO 4  ____ Na 3 PO 4 + ____ HBr
Type of reaction: ____________________

2) ___ Ca(OH) 2 + ___Al 2 (SO 4 ) 3  ___CaSO 4 + __Al(OH) 3
Type of reaction: ____________________

3) ____ Mg + ____ Fe 2 O 3  ____ Fe + ____ MgO

Type of reaction: ____________________

4) ____ C 2 H 4 + ____ O 2  ____ CO 2 + ____ H 2 O

Type of reaction: ____________________

5) ____ PbSO 4  ____ PbSO 3 + ____ O 2

Type of reaction: ____________________

6) ____ NH 3 + ____ I 2  ____ N 2 I 6 + ____ H 2

Type of reaction: ____________________

7) ____ H 2 O + ____ SO 3  ____ H 2 SO 4

Type of reaction: ____________________

8) __ H 2 SO 4 + __ NH 4 OH  __ H 2 O + __ (NH 4 ) 2 SO 4

Type of reaction: ____________________

Can you answer these questions to me.

Answer 1

Here are the balanced equations and the reaction types:

1) 3 NaBr + H3PO4 → Na3PO4 + 3 HBr
Type: Double displacement (metathesis)

2) 3 Ca(OH)2 + Al2(SO4)3 → 3 CaSO4 + 2 Al(OH)3
Type: Double displacement (precipitation)

3) 3 Mg + Fe2O3 → 2 Fe + 3 MgO
Type: Single displacement (redox)

4) C2H4 + 3 O2 → 2 CO2 + 2 H2O
Type: Combustion

5) 2 PbSO4 → 2 PbSO3 + O2
Type: Decomposition

6) 2 NH3 + 3 I2 → N2I6 + 3 H2
Type: Synthesis / redox

7) H2O + SO3 → H2SO4
Type: Synthesis (combination)

8) H2SO4 + 2 NH4OH → 2 H2O + (NH4)2SO4
Type: Acid–base neutralization (double displacement)