Question

вам выданы три пробирки с растворами определите в каккой из них находится соляная кислота серная кислота и гидроксид натрия напишите уровнение соответствующее реакции в молекулярном и ионном видах

Answer 1

Ход опыта:

(1) В три пробирки наливаем раствор фенолфталеина, пробирка с раствором щелочи окрасится в малиновый цвет - ее убираем

(2) В оставшиеся две, наливаем раствор нитрата серебра. В пробирке с соляной кислотой выпадет осадок творожистый.

(3) В оставшуюся пробирку наливаем раствор хлорида бария. В пробирке с серной кислотой выпадет белый осадок сульфата бария

AgNO3 + HCl = AgCl + HNO3

Ag+  +  Cl-  = AgCl

 

BaCl2 + H2SO4 = 2HCl + BaSO4

Ba2+  +   SO42-   = BaSO4

 

Answer 2

HCL+AgNO3=AgCl+HNO3

H+CL+ Ag +NO3=AgCl+H+NO3

Cl+Ag=AgCL

 

H2SO4+BaCl2=ВаSO4+2HCl

2H+so4+Ba+2Cl=BaSO4+2H+2CL

SO4+Ba=BaSO4

 

NaOH+HCl=NaCl+H2O

Na+OH+ H+Cl=Na+Cl+H20

OH+H=h2o

Answer 3

Identification of the Solutions

To determine which of the three solutions contains hydrochloric acid, sulfuric acid, and sodium hydroxide, we need to perform some tests. Here's how we can identify each solution:

1. Sodium Hydroxide (NaOH): Sodium hydroxide is a strong base that can be identified by its characteristic properties. One way to test for sodium hydroxide is by using litmus paper. Sodium hydroxide will turn red litmus paper blue, indicating its basic nature.

2. Hydrochloric Acid (HCl): Hydrochloric acid is a strong acid that can be identified by its acidic properties. One way to test for hydrochloric acid is by using litmus paper. Hydrochloric acid will turn blue litmus paper red, indicating its acidic nature.

3. Sulfuric Acid (H2SO4): Sulfuric acid is also a strong acid that can be identified by its acidic properties. Similar to hydrochloric acid, sulfuric acid can be tested using litmus paper. Sulfuric acid will turn blue litmus paper red, indicating its acidic nature.

By performing these tests, we can determine which solution contains each of the substances.

Molecular and Ionic Equations

To write the molecular and ionic equations corresponding to the reactions, we need to know the reactants and products involved. Since we don't have specific information about the reactants and products in the solutions, we cannot provide the exact equations. However, I can provide you with general equations for the reactions involving hydrochloric acid, sulfuric acid, and sodium hydroxide.

1. Reaction of Hydrochloric Acid (HCl): - Molecular Equation: HCl + Base → Salt + Water - Ionic Equation: H+ + Cl- + Base → Salt + H2O

2. Reaction of Sulfuric Acid (H2SO4): - Molecular Equation: H2SO4 + Base → Salt + Water - Ionic Equation: 2H+ + SO4^2- + Base → Salt + 2H2O

3. Reaction of Sodium Hydroxide (NaOH): - Molecular Equation: Base + Acid → Salt + Water - Ionic Equation: Base + H+ + OH- → Salt + H2O

Please note that these equations are general representations of the reactions and may not accurately reflect the specific reactions occurring in the given solutions.

If you have any further questions, feel free to ask!