Question

reactants appearance of reactants observations after mixing (select all that apply) products (select all that apply) zn(s) + h₂so₄(aq) the chemical turn into bubbling. no observable change bubbles formed in mixture mixtures color changed solid formed in mixture test tube felt colder test tube felt hotter no reaction occurred h₂(g) o₂(g) znh₂(aq) zn(hso₄)₂(aq) znso₄(aq) mg(s) + hcl(aq) the test tube turn hot to the point it boiled. no observable change bubbles formed in mixture mixtures color changed solid formed in mixture test tube felt colder test tube felt hotter no reaction occurred h₂(g) cl₂(g) mgcl(aq) mgcl₂(aq) mgh₂(aq) zn(s) + cuso₄(aq) no observable change bubbles formed in mixture solutionss color fades solid formed in mixture test tube felt colder no reaction occurred cu(aq) cu(s) znso₄(aq) znso₄(s) solubility table | activity series how to predict products | how to balance chemical equations

Explanation:

Step1: Analyze the reaction \(Zn(s)+H_2SO_4(aq)\)

Zinc reacts with sulfuric acid in a single - displacement reaction. The chemical equation is \(Zn(s)+H_2SO_4(aq)=ZnSO_4(aq)+H_2(g)\). Bubbles are formed due to the production of hydrogen gas.

Step2: Analyze the reaction \(Mg(s)+HCl(aq)\)

Magnesium reacts with hydrochloric acid. The chemical equation is \(Mg(s)+2HCl(aq)=MgCl_2(aq)+H_2(g)\). Bubbles are formed (hydrogen gas) and the reaction is exothermic (test tube felt hotter).

Step3: Analyze the reaction \(Zn(s)+CuSO_4(aq)\)

Zinc reacts with copper sulfate in a single - displacement reaction. The chemical equation is \(Zn(s)+CuSO_4(aq)=ZnSO_4(aq)+Cu(s)\). A solid (copper) is formed and the color of the copper sulfate solution fades.

Answer:

For \(Zn(s)+H_2SO_4(aq)\): Observations - Bubbles formed in mixture; Products - \(H_2(g)\), \(ZnSO_4(aq)\)
For \(Mg(s)+HCl(aq)\): Observations - Bubbles formed in mixture, Test tube felt hotter; Products - \(H_2(g)\), \(MgCl_2(aq)\)
For \(Zn(s)+CuSO_4(aq)\): Observations - Solid formed in mixture, Solutions's color fades; Products - \(Cu(s)\), \(ZnSO_4(aq)\)