0
What else can I help you with?
Why does electrolysis not occur unless lead II bromide is molten?
Electrolysis requires the movement of ions to conduct electricity. In solid lead II bromide, the ions are held in fixed positions and cannot move freely to carry an electric current. When lead II bromide is molten, the ions are free to move and can participate in electrolysis.
What is uniform composition?
a pure substance. either a compound or an element. Also, a solution, which is a homogeneous mixture, not a pure substance.
What happens after dipping a substance into a pH solution?
When a substance is dipped into a pH solution, it will either change color due to a chemical reaction with the solution, or it may not show any visible change if the substance is neutral. This process helps determine the acidity or basicity of the substance based on the pH solution's color change.
What is a solution when there is a large dissolved substance in a small amount of water?
This is called a concentrated solution, not especially a saturated solution.('saturated' means: maximal possibleconcentration, this is not always a large amount!)
Is chlorine extracted from electrolysis?
Yes, it is a primary way to extract chlorine gas.The most common means is to use electrolysis in a tank containing a solution of potassium chloride (KCl) or sodium chloride (NaCl, better known as table salt). The end result is potassium/sodium hydroxide in the solution--either one a very useful strong base, hydrogen gas, and chlorine gas.
A pure substance is either a compound or?
The components of a pure substance can be either molecules or atoms.
What kind of electricity supply is used for electrolysis?
It must be direct current for electrolysis.
If an unknown solid substance is non polar will it matter if distilled or tap water is used to prepare a solution of this substance?
If the solid substance is nonpolar, it will more likely dissolve better in an organic solvent rather than water. In this case, using distilled or tap water to prepare a solution may not make a significant difference in the solubility of the substance since it is nonpolar and not likely to dissolve well in water regardless.
What is formed when a substance dissolves in water whithout chemically changing the water or substance?
A solution is formed when a substance dissolves in water without chemically changing either the water or the substance. In a solution, the substance is evenly distributed at a molecular level throughout the water, resulting in a homogeneous mixture.
Is a saturated solution a heterogeneous or homogeneous mixture?
No. If a substance is soluble, it will dissolve in a solvent, which means you will not be able to visually distinguish it. This would be a solution, which is a homogenous mixture.
What will happen when electrolysis of dilute sodium chloride solution using copper and zinc electrode?
Usually hydrogen will evolve from the cathode and oxygen from the anode, but if zinc is the anode, it may dissolve to produce zinc ions in the solution either instead of or along with oxygen evolving.
How is a compound different from solution?
A solution is a type of mixture at the molecular/atomic level. Mixtures that are not solutions usually contain particles visible at either the microscopic or macroscopic level.
