(NH4)2S(aq)+SrCl2(aq)→
Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer.

A chemical equation is an equation showing chemical symbols of reactants and those of products. They represent a chemical reactions between reactants to form products.
For example; (NH4)2S(aq)+SrCl2(aq)→ 2 NH4Cl(aq) + SrSO4(s), where (NH4)2S and SrCl2 are reactants while NH4Cl and SrSO4 are products.

Precipitation reactions are reactions which involves the formation of a precipitate as one of the products. A precipitate is a compound that is insoluble in water.
An example of a precipitation reaction is; (NH4)2S(aq)+SrCl2(aq)→ 2 NH4Cl(aq) + SrSO4(s), where the compound SrSO4 is the precipitate.

Displacement reactions are reactions where ions replace other ions in their compounds.
For example; ; (NH4)2S(aq)+SrCl2(aq)→ 2 NH4Cl(aq) + SrSO4(s) is an example of a double displacement reaction where NH4+ takes the place of Sr ions in SrCl2 and Sr2+ takes the place of NH4+ in (NH4)2SO4.

Decomposition reactions are reactions which involves break down of a compound to its constituent’s elements or other compounds by use of a catalyst or heat.
For example; Decomposition of lead (II) nitrate using heat to get lead (ii) oxide, oxygen and nitrogen (IV) oxide.

Neutralization reactions are reactions that involve reacting a base or an alkali and an acid to form a salt and water as the only product.

Redox reactions are reactions that involve both reduction and oxidation. Some species in reactions undergo reduction while others undergo oxidation.

Keywords: Chemical reactions, precipitation reactions, chemical equations

Level: High school

Subject: Chemistry

Topic: Chemical reactions

Sub-topic: Precipitation reactions

priyankatutor priyankatutor · Answer 2 · 2021-10-20T14:57:55+02:00

The reaction will complete in two phages. Positive ion will react with negative ion

The reaction is;

[tex]\rm \bold { (NH_4)_2SO_4(aq)+SrCl_2(aq) \rightarrow 2 NH_4Cl(aq) + SrSO_4(s)}[/tex]

As we know negative ion reacts. The reaction will complete in 2 phages.

First phase of the reaction,

[tex]\rm \bold { (NH_4)_2^++2Cl^-(aq) \rightarrow 2 NH_4Cl(aq) }[/tex]

The second phase will be,

[tex]\rm \bold { SO_4^-^2+(aq)+Sr^+^2(aq) \rightarrow SrSO_4(s)}[/tex]

Hence, we can conclude that the reaction will complete in two phages. Positive ion will react with negative ion.

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