Answer:
plato answer d
Explanation:
(2) 2 ppm (4) 0.02 ppm
B) dilute
C) dissociated
D) Concentrated
A solution that has a relatively large quantity of solute dissolved in the solvent is concentrated.
Hence, option D is the answer.
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In a chemical change, the molecules in the reactants interact to form new substances. In a physical change, like a state change or dissolving, no new substance is formed.
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Molecules move to the location of a chemical change due to the process of diffusion. In this physical phenomenon, molecules move from an area of high concentration to an area of lower concentration. This diffusion leads to interaction between reactant molecules causing the chemical change.
The movement of molecules to the location of a chemical change is a fundamental concept in Chemistry. In a chemical reaction, molecules move due to a physical phenomenon known as diffusion. Diffusion is the process by which molecules of a substance move from an area of high concentration to an area of lower concentration. For example, if you open a perfume bottle at one end of a room, eventually the perfume molecules will spread throughout the room. These perfume molecules move to areas of lower concentration via diffusion. In the context of a chemical reaction, the reactant molecules diffuse to interact with each other, leading to the chemical change or reaction.
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As the barium hydroxide solution is added to the solution of sulfuric acid, the electrical conductivity of the acid solution decreases because the
(1) volume of the reaction mixture increases
(2) temperature of the reaction mixture decreases
(3) concentration of ions increases
(4) concentration of ions decreases
As the barium hydroxide solution is added to the solution of sulfuric acid, The conductivity would decrease because the concentration of ions decreases. Thus option 4 is correct.
Electric conductivity can be defined as the measure of the mechanism of electric current moves within a substance, greater the electrical conductivity within the material higher will be the current density.
The electrical conductivity is the ability of a substance that involve in conduction of electricity, the conductivity of a material is important for example the wire conductors need to let current to flow as easily.
When barium hydroxide dissolve in a solution called sulphuric acid, the Barium ions replace the hydrogen ions and an insoluble solid doesn't contribute ions.
Thus option 4 is correct.
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