Question

Write a balanced equation and indicate the reaction type (single or double replacement, decomposition, or composition/synthesis) for each of the following:
Iron (III) bromide (aq) + ammonium sulfide (aq) --> iron (III) sulfide (s) + ammonium bromide (aq)
Calcium oxide (s) + diphosphorus pentoxide (s) --> calcium phosphate (s)
Magnesium chloride (aq) + silver nitrate (aq) --> magnesium nitrate (aq) + silver chloride (s)
Sodium carbonate (aq) + sulfuric acid (aq) --> sodium sulfate (aq) + carbon dioxide (g) + water (l)
Iron (II) sulfide (is) + hydrochloric acid (aq) --> iron (II) chloride (aq) + hydrogen sulfide (g)

Answer 1

Answer: The equations are written below.

Explanation:

Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.

$AB+C\rightarrow CB+A$

Element C is more reactive than element A.

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

$AB+CD\rightarrow CB+AD$

Decomposition reaction is defined as the reaction in which a large substance breaks down into smaller substances.

$AB\rightarrow A+B$

Synthesis reaction is defined as the reaction in which smaller substances combine in their elemental state to form a larger substance.

$A+B\rightarrow AB$

For the given options:

• Option 1: Iron (III) bromide reacting with ammonium sulfide to produce iron (III) sulfide and ammonium bromide

The balanced chemical equation follows:

$Fe_2(SO_4)_3+3(NH_4)_2S\rightarrow Fe_2S_3+3(NH_4)_2SO_4$

This is considered as double displacement reaction.

• Option 2: Calcium oxide reacting with diphosphorus pentoxide to produce calcium phosphate

The balanced chemical equation follows:

$3CaO+P_2O_5\rightarrow Ca_3(PO_4)_2$

This is considered as synthesis reaction.

• Option 3: Magnesium chloride reacting with silver nitrate to produce magnesium nitrate and silver chloride

The balanced chemical equation follows:

$MgCl_2+2AgNO_3\rightarrow 2AgCl+Mg(NO_3)_2$

This is considered as double displacement reaction.

• Option 4: Sodium carbonate reacting with sulfuric acid to produce sodium sulfate, carbon dioxide and water

The balanced chemical equation follows:

$Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+CO_2+H_2O$

This is considered as double displacement reaction.

• Option 5: Iron(II) sulfide reacting with hydrochloric acid to produce iron (II) chloride and hydrogen sulfide

The balanced chemical equation follows:

$FeS+2HCl\rightarrow FeCl_2+H_2S$

This is considered as double displacement reaction.

Hence, the reactions are written above.